Probably try without jemalloc, or just switch to Docker 
Oke very convincing strategy 
. I have a spare rpi so I will try docker. 
I’m having exactly the same issue. Is there any way to avoid moving to docker and still compile python 3.8 with jemalloc on a Pi 4?
Probably, but I’ve not invested the time in working it out. If it matters that much, switch to Docker since the Docker builds use it.
I’ve been looking into this and the only issue I see, running a newer version of python alongside package base, is that no automatic updates will happen.
Every 2 months a point release will occur, so to stay up-to-date with bug fixes (or at least follow the Docker releases as mentioned above – follow Docker ) one will need to re-install the new python and upgrade the venv.
As to upgrading the venv I believe it may be as simple as running “python3.x -m venv --upgrade ENV_DIR” where “3.x” is replaced with whichever python to which you’re upgrading. I’m guessing you don’t want to use this for 3.7.3 -> 3.8, for example … just updating point releases.
(Looking into this has me wondering: should we have been doing the --upgrade command on the venv all along; it’s not clear to me that “apt upgrade” package updates will find their way into the venv.)
I understand the need to limit supported versions (especially if moving between releases guarantees breakage). This will be interesting to see what happens when 3.7 support is removed as every rpi user that’s not on Docker will be affected. I personally am stubbornly refusing to move to Docker – I actually went through the official install and onboarding on a spare rpi as a test and still strongly prefer my existing setup. I may need to revisit this as it seems like the maintenance burden is going up.
2 Likes
The same thing happened when Python 3.5 was deprecated, and 3.6. This isn’t a new dance 
The answer will be that many people will altinstall Python 3.8 (and in the next year 3.9), and others will switch to Docker. Some will just stay on the last version of HA that supports their version of Python.
Based on h_t_t_p_s://www.home-assistant.io/docs/installation/raspberry-pi/ (my instalation) and some google search, i,ve update python 3.7.0 to 3.8.6 with no major problems, Just had to adjust some configuration in configuration.yaml, and just work like charm, and test in other instalation version 3.9.0 and run as well too, Hope this help:
#dont have to change anything in home assistant “boot”.
#With PI user
sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get install build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev python3 python3-dev python3-venv python3-pip libffi-dev libtiff-dev autoconf libopenjp2-7
wget -O /tmp/Python-3.8.6.tar.xz https://www.python.org/ftp/python/3.8.6/Python-3.8.6.tar.xz
cd /tmp
tar xf Python-3.8.6.tar.xz
cd Python-3.8.6
./configure
sudo make altinstall
sudo apt -y autoremove
cd
rm -r /tmp/Python-3.8.6
rm /tmp/Python-3.8.6.tar.xz
sudo mv /srv/homeassistant /srv/homeassistant_old
cd /srv
sudo mkdir homeassistant
sudo chown homeassistant:homeassistant homeassistant
sudo -u homeassistant -H -s
cd /srv/homeassistant
/usr/local/bin/python3.8 -m venv .
source bin/activate
python3 -m pip install wheel
pip3 install homeassistant
pip3 install websocket-client #sonoff if add in costum components
pip3 install mysqlclient #mysql if run HA db in mariadb/mysql
hass # here we see the error´s and adjust config
for version 3.9.0 just change “3.8.6” to 3.9.0 and
“/usr/local/bin/python3.9 -m venv .”
#Best regards Igor
20 Likes
Thanks for your very clear and concise manual, I have a question, I don’t use sonoff at all and I don’t have the db anywhere else, I understand that the last commands are not necessary.
I mean these!
pip3 install websocket-client #sonoff if add in costum components
pip3 install mysqlclient #mysql if run HA db in mariadb/mysql
Gracias
Yes, if you dont have, dont need. (Saludos)
Just for testing 
I like HA in venv do things the hard way, this way I´m learnig a litle bit every day. No only home assistant “sings” but debian it self. Docker is a solution but no the same thing,
Likewise, since I installed it following an official manual, I have learned many things and I am happy about it. I would like to be able to update without problem and continue learning, without the need to change installation. I also have quite a few things configured that I will have to modify or tweak just to change the installation.
So I want to update Python and continue as before.
Thanks, I’ll give it a try these days! First I want to make a backup copy of the disk where the system is installed.
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Oh, don’t get me wrong, I run HA in a venv too - but it does require more effort, skill, and the ability to Google, than if you’re on Docker.
1 Like
Unless you run local software, moving to Docker requires no changes to your config.
In did, but that´s the point, more efford = more skill´s.
Hi guys!
Thanks a lot for the procedure igorlemos…
I have the same configuration (without the extra) and that worked smoothly …
But I got the following message while installing Home Assistant:
pip3 install homeassistant
…
ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.
We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.
aiohttp 3.6.2 requires multidict<5.0,>=4.5, but you’ll have multidict 5.0.0 which is incompatible.
Up to now, everything is working fine… I am just wondering if that could be a problem?
Later on…
Thanks,
Hello, me again…
I just found out this within the log, related to Insteon:
Logger: homeassistant.config_entries
Source: components/insteon/init.py:162
First occurred: October 12, 2020, 9:21:28 PM (1 occurrences)
Last logged: October 12, 2020, 9:21:28 PM
Error setting up entry for insteon
Traceback (most recent call last):
File “/srv/homeassistant/lib/python3.8/site-packages/homeassistant/config_entries.py”, line 231, in async_setup
result = await component.async_setup_entry(hass, self) # type: ignore
File “/srv/homeassistant/lib/python3.8/site-packages/homeassistant/components/insteon/init.py”, line 162, in async_setup_entry
model=f"{devices.modem.model} (0x{devices.modem.cat:02x}, 0x{devices.modem.subcat:02x})",
File “/usr/local/lib/python3.8/enum.py”, line 669, in format
return cls.format(val, format_spec)
ValueError: Unknown format code ‘x’ for object of type ‘str’
Any idea?
Thanks,
@paul5 based on the error message it appears you are using python 3.8. The error message does not appear to be related to any python version but rather to something in your environment with the startup of Insteon. I am going to send you a direct message to help debug your issue.
aiohttp 3.6.2 requires multidict<5.0,>=4.5, but you’ll have multidict 5.0.0 which is incompatible.
pip3 install --upgrade --force-reinstall multidict==4.7.6
This will work unless something else (other than HA) needs multidict 5.0.0. The alternative is to install a later version of aiohttp that’s compatible with both HA and multidict 5.0 (if it exists).