How to install Python 3.7 in google colab?

Question

My google colab python version is 3.8 and I need version 3.7. I try to install python 3.7, but after installation I get an error to install packages.

I use this method to install python 3.7:

!sudo apt-get install python3.7
!sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1
!sudo update-alternatives --config python3
!sudo apt install python3-pip

After running the Python version is:

!python --version
#Python 3.7.15

When I want to install a package (for example, torchfold):

!pip install torchfold

I get this error:

Traceback (most recent call last):
File "/usr/local/bin/pip3", line 5, in <module>
from pip._internal.cli.main import main
ModuleNotFoundError: No module named 'pip._internal'

I could not solve it with the available resources, can you help me to solve this problem?

Did you read [this](https://stackoverflow.com/questions/63867581/install-python-3-7-via-google-colab-as-default-python) — I'mahdi, Dec 05 '22 at 20:25
``` !sudo apt install python3-pip ``` See https://stackoverflow.com/questions/49940813/pip-no-module-named-internal — ym gu, Dec 21 '22 at 12:54
``` !sudo apt install python3-pip ``` See https://stackoverflow.com/questions/49940813/pip-no-module-named-internal — ym gu, Dec 21 '22 at 12:56

score 3 · Answer 1 · edited Jan 20 '23 at 14:46

3

-----To install specific version 3.7 of python in Google Colab-----
!sudo apt-get install python3.7
!sudo apt-get update -y
!sudo update-alternatives --install /usr/bin/python3 python3
/usr/bin/python3.7 1
!sudo update-alternatives --config python3

Select the specific number for 3.7

#Now check the version it will be 3.7

!python --version

#After that to install pip use these commands

edited Jan 20 '23 at 14:46

James Flash

528
7
15

answered Dec 13 '22 at 10:53

M. Abdullah Fiaz

31
1

1

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Dec 16 '22 at 15:40

score 1 · Answer 2 · edited May 10 '23 at 07:35

I used @M. Abdullah Fiaz but

-----To install specific version 3.7 of python in Google Colab-----

!sudo apt-get install python3.7
!sudo apt-get update -y
!sudo update-alternatives --install /usr/bin/python3 python3
/usr/bin/python3.7 1
!sudo update-alternatives --config python3

In "!sudo update-alternatives --config python3" I was being asked:

There are 3 choices for the alternative python3 (providing /usr/bin/python3).

  Selection    Path                 Priority   Status
------------------------------------------------------------
* 0            /usr/bin/python3.10   2         auto mode
  1            /usr/bin/python3.10   2         manual mode
  2            /usr/bin/python3.7    2         manual mode
  3            /usr/bin/python3.8    1         manual mode

Press <enter> to keep the current choice[*], or type selection number: update-alternatives:

" So I changed it to:

!sudo update-alternatives --config python3 <<< '2'

score 0 · Answer 3 · answered Jan 03 '23 at 14:31

0

After running !sudo apt install python3-pip, force a pip reinstall using: !python -m pip install --upgrade --force-reinstall pip This is gonna ensure that pip is correct installed again.

answered Jan 03 '23 at 14:31

Bruno Messias

35
5

How to install Python 3.7 in google colab?

3 Answers3

Select the specific number for 3.7