TypeError: 'str' object is not callable

Sougotsu · April 15, 2025, 11:16am

Hi folks,

I’m having a problem with a script:

It says:

Error: Error rendering data template: TypeError: ‘str’ object is not callable

action: input_datetime.set_datetime
target:
  entity_id: input_datetime.last_time_detected_false_bedroom
data:
  timestamp: '{{ now().timestamp() }}'

I’m testing using the dev tools templates and it works just fine.

Also if a change the line ‘{{ now().timestamp() }}’ for a unix timestamp directly the whole script works, so the issue is in that line.

According to the doc Input Datetime - Home Assistant thats the way to set the timestamp so I don’t understand why is not working in the runtime of the script

Any help is greatly appreciated. Thanks!

LiQuid_cOOled · April 15, 2025, 11:32am

Test this {{now() | as_timestamp}}

Sougotsu · April 15, 2025, 1:09pm

Same behaviour

petro · April 15, 2025, 1:19pm

just use datetime.

action: input_datetime.set_datetime
target:
  entity_id: input_datetime.last_time_detected_false_bedroom
data:
  datetime: '{{ now() }}'

There may be a bug with timestamp however I don’t see how there could be unless set_datetime is doing something odd.

Sougotsu · April 15, 2025, 6:51pm

Still same error

Here the log error:

Registrador: homeassistant.components.websocket_api.http.connection
Fuente: components/websocket_api/commands.py:245
integración: Home Assistant WebSocket API (documentación, problemas)
Ocurrió por primera vez: 13:55:00 (1 ocurrencias)
Última vez registrado: 13:55:00

[2343056408] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable

petro · April 15, 2025, 6:58pm

Not sure what to tell you. I just made a test script with the exact same code and it works without a problem. Ran it against all 3 input_datetime types.

I suggest you open your logs and look at the error

Sougotsu · April 15, 2025, 7:03pm

Here when I use a hardcode, it finishs the whole script execution

Here the logs when using "datetime: ‘{{ now() }}’

Registrador: homeassistant.components.websocket_api.http.connection
Fuente: components/websocket_api/commands.py:245
integración: Home Assistant WebSocket API (documentación, problemas)
Ocurrió por primera vez: 13:55:00 (1 ocurrencias)
Última vez registrado: 13:55:00

[2343056408] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable

petro · April 15, 2025, 7:04pm

The error you posted alludes a syntax error. The templates aren’t limited at that point, nor are they strict, so it should not happen at all. This is likely linked to the keyboard/character set you are using.

Copy/paste this as your step.

action: input_datetime.set_datetime
target:
  entity_id: input_datetime.last_time_detected_false_bedroom
data:
  datetime: '{{ now() }}'

petro · April 15, 2025, 7:05pm

Can you post the actual logs? Not the “pretty UI logs”. There’s an option to view the raw logs and I’d like to see everything happening around that time.

Sougotsu · April 15, 2025, 7:15pm

I copied and pasted the whole block, same situation.

The logs that I’m pasting are from http://homeassistant.local:8123/config/logs
The one under the Unexpected exception.

[2291932656] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable

Or what do you mean for the raw log?

Inside the trace I can’t see a raw log but just the Error string that is referenced from the system logs that I just shared.

petro · April 15, 2025, 7:16pm

Sougotsu · April 15, 2025, 7:20pm

2025-04-15 14:06:37.855 ERROR (Dummy-1) [homeassistant.components.script.turn_off_light_if_not_occupied_advanced] Turn off light (advanced): Error executing script. Error for call_service at pos 2: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:06:37.857 ERROR (Dummy-1) [homeassistant.components.websocket_api.http.connection] [2291932656] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable

petro · April 15, 2025, 7:22pm

Can you please post more of the logs. Right now I have nothing to go on because it does not look like it’s coming from that template. That template ("{{ now() }}") will not produce a template error that you’ve shown. It’s just not possible.

petro · April 15, 2025, 7:28pm

I guess the only other option is if you somehow overwrote now in a variables step before this function call. But you still haven’t shared the automation to confirm that.

Sougotsu · April 15, 2025, 7:30pm

In the raw logs they are the same, I ran the script multiple times it just generates the same error in a row

2025-04-15 14:23:26.751 ERROR (Dummy-1) [homeassistant.components.script.turn_off_light_if_not_occupied_advanced] Turn off light (advanced): Error executing script. Error for call_service at pos 2: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:23:26.753 ERROR (Dummy-1) [homeassistant.components.websocket_api.http.connection] [2288150248] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:23:32.225 ERROR (Dummy-1) [homeassistant.components.script.turn_off_light_if_not_occupied_advanced] Turn off light (advanced): Error executing script. Error for call_service at pos 2: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:23:32.227 ERROR (Dummy-1) [homeassistant.components.websocket_api.http.connection] [2288150248] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:23:33.467 ERROR (Dummy-1) [homeassistant.components.script.turn_off_light_if_not_occupied_advanced] Turn off light (advanced): Error executing script. Error for call_service at pos 2: Error rendering data template: TypeError: 'str' object is not callable
2025-04-15 14:23:33.470 ERROR (Dummy-1) [homeassistant.components.websocket_api.http.connection] [2288150248] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 644, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2904, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 401, in call
    return __context.call(__obj, *args, **kwargs)
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 416, in async_prepare_call_from_config
    render = template.render_complex(config[conf], variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 261, in render_complex
    render_complex(key, variables, limited, parse_result): render_complex(
                                                           ~~~~~~~~~~~~~~^
        item, variables, limited, parse_result
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 267, in render_complex
    return value.async_render(variables, limited=limited, parse_result=parse_result)
           ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 646, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: TypeError: 'str' object is not callable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2794, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2837, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 718, in _service_handler
    response = await self._async_start_run(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        variables=service.data, context=service.context, wait=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 674, in _async_start_run
    script_result = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/script/__init__.py", line 707, in _async_run
    return await self.script.async_run(script_vars, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1827, in async_run
    return await asyncio.shield(create_eager_task(run.async_run()))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 460, in async_run
    await self._async_step(log_exceptions=False)
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 526, in _async_step
    self._handle_exception(
    ~~~~~~~~~~~~~~~~~~~~~~^
        ex, continue_on_error, self._log_exceptions or log_exceptions
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 556, in _handle_exception
    raise exception
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 524, in _async_step
    await getattr(self, handler)()
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 981, in _async_step_call_service
    params = service.async_prepare_call_from_config(
        self._hass, self._action, self._variables
    )
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 423, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: TypeError: 'str' object is not callable

Why hardcoding the value the complete script works and finish the whole execution, but using the {{ now() }} (or the different ways Im trying to get the datetime) doesn’t work.

And the only part the assignment of a value using templates is failing is in that point, because for example, the following block works ok

sequence:
  - variables:
      switch_state: "{{ states(switch) }}"
      updated_at: "{{ as_datetime(states[switch].last_changed) | as_local }}"
      now: "{{ now() }}"

petro · April 15, 2025, 7:31pm

Yep, you overwrote now with a string. Change that variable name to something else.

Sougotsu · April 15, 2025, 7:48pm

God, hahahha, I feel like a dumb, I just noticed that variable was overwriting.

Everthing happens when I tried different codes from many sources trying to calculate a time difference for other variable in minutes.

Thanks so much petro