python: error while loading shared libraries: libpython3.4m.so.1.0: cannot open shared object file: No such file or directory

Question

I have created a python virtual environment using virtualenv, after activating it, I can see where is Python installed in my shell as following:

(virtualenv-test) bash-4.1$ whereis python
python: /usr/bin/python2.6 /usr/bin/python2.6-config /usr/bin/python
/usr/lib/python2.6 /usr/lib64/python2.6 /usr/X11R6/bin/python2.6
/usr/X11R6/bin/python2.6-config /usr/X11R6/bin/python
/usr/bin/X11/python2.6 /usr/bin/X11/python2.6-config
/usr/bin/X11/python /usr/include/python2.6
/usr/share/man/man1/python.1.gz

Also I can see what python version I'm using:

(virtualenv-test) bash-4.1$ which python
/data/virtualenv-test/bin/python

However, after typing python, I got the following error message:

(virtualenv-test) bash-4.1$ python
python: error while loading shared libraries: libpython3.4m.so.1.0: cannot open shared object file: No such file or directory

What can be the underlying reason?

yukashima huksay · Accepted Answer · 2020-06-26 09:08:43Z

81

Try adding the python3.4's lib path to the $LD_LIBRARY_PATH environment variable.

First find out the lib path of python3.4 (depends on how you installed python3.4)

For me it was: /opt/python361/lib, then add it to environment variable like so:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/python361/lib

P.S. I came across a similar problem while using virtualenv with python3.6, and I fixed it like so:

First, append include <lib path of python3.x> to /etc/ld.so.conf (Something like: include /opt/python361/lib or include /usr/local/lib)
Then, activate the new configuration by running sudo /sbin/ldconfig -v.

edited Jun 26, 2020 at 9:08

yukashima huksay

6,3189 gold badges52 silver badges88 bronze badges

answered Apr 26, 2017 at 2:17

williezh

1,0356 silver badges8 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

user1561108 Over a year ago

2. worked for me. Could you point me in the direction of a good resource to understand why this works? thanks.

Jesper - jtk.eth Over a year ago

1. did the trick on Red Hat (no virtual env). My path was /opt/local/lib (I built python from source with --enable-shared in the call to ./configure and it printed out the path of the shared files.

yukashima huksay Over a year ago

First answer worked for me but then when I used gunicorn I got the same error in which case the P.S. solution did it.

Abhilash Singh Chauhan Over a year ago

in centos 7 it is export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

Amon Over a year ago

@AbhilashSinghChauhan this worked for me on Amazon Linux 2

buxizhizhoum · Accepted Answer · 2019-05-11 07:14:22Z

37

Another way is adding LDFLAGS="-Wl,-rpath /usr/local/lib" in configure, for example

./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"

/usr/local/lib is the path where libpython3.*.so files are in

answered May 11, 2019 at 7:14

buxizhizhoum

1,9491 gold badge28 silver badges36 bronze badges

3 Comments

Deepstop Over a year ago

This worked for me. Python 3.7.4 under CentOS. Thanks!

riotejas Over a year ago

This worked for me building and installing python-3.8.2 on ubuntu 14.04.6

harperville Over a year ago

I received the following error when trying this solution: ./python: symbol lookup error: ./python: undefined symbol: __gcov_indirect_call_callee I'm removing these flags and am going to try @williezh's solution.

A. Attia · Accepted Answer · 2019-01-09 17:58:35Z

22

For Python 3.6, it was fixed by

sudo apt-get install libpython3.6-dev

answered Jan 9, 2019 at 17:58

A. Attia

1,7403 gold badges23 silver badges30 bronze badges

3 Comments

harperville Over a year ago

python 3.6 isn't available in my repos. I'm on Jessie. Yay!

e.saleh Over a year ago

And also for Python 3.9: sudo apt-get install libpython3.9-dev

Peter Henry Mar 28 at 6:05

Also works for 3.11.11 sudo apt-get install libpython3.11-dev.

vvvvv · Accepted Answer · 2022-04-12 12:40:36Z

13

export LD_LIBRARY_PATH=[your python path to libpython3.4m.so]

libpython3.4m.so is under your python source from which you built it.

Put it in your .bashrc to set it at login automatically.

I can't force virtualenv to 3.4 on my machine but you can see that under lib of your virtualenv there's just a bunch of symlink to your local python installation. I guess libpython3.4m.so is fetched by one of those.

edited Apr 12, 2022 at 12:40

vvvvv

32.9k19 gold badges70 silver badges103 bronze badges

answered Aug 28, 2017 at 18:14

Pobe

2,8031 gold badge20 silver badges25 bronze badges

1 Comment

Bill Joe Over a year ago

To add to this answer for Linux users, if you cannot find where it may be located (perhaps due to multiple installations of Python), use the locate/find command.

vvvvv · Accepted Answer · 2022-04-12 12:41:09Z

7

For me, libpython3.6m.so.1.0 was in the folder where I downloaded Python source (~/Python3.6.9).

I simply did:

sudo cp ~/Python3.6.9/libpython3.6m.so.1.0 /usr/local/lib/python3.6/

and:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/python3.6

edited Apr 12, 2022 at 12:41

vvvvv

32.9k19 gold badges70 silver badges103 bronze badges

answered Jun 23, 2020 at 2:15

Astariul

2,3925 gold badges28 silver badges44 bronze badges

Comments

Ajay-2007 · Accepted Answer · 2020-11-14 14:39:42Z

6

This one worked for me.

cd ~/
vim .bashrc
export LD_LIBRARY_PATH=~/miniconda/envs/python3.6/lib/

answered Nov 14, 2020 at 14:39

Ajay-2007

611 silver badge1 bronze badge

1 Comment

ZF007 Over a year ago

old question, add versioning and why this works to improve answer quality. Otherwise it helps trigger down-voters or bot labeling question "low quality answer". End of Review. Welcome and enjoy SO ;-)

Sina · Accepted Answer · 2019-05-24 17:14:33Z

5

Kudos to above, For python 3.X you can fix this issue with:

sudo apt-get install libpython3.x-dev

No need to any changes to environment path manually.

answered May 24, 2019 at 17:14

Sina

2013 silver badges8 bronze badges

1 Comment

jaromrax Over a year ago

Not on ububtu 20.04

Vittore Marcas · Accepted Answer · 2022-04-27 03:40:02Z

If you are manually installing another python3 or python,

e.g: python3.6,

the active files(e.g: python3.6, python3.6m, python3.6m-config) are located at /usr/local/bin,

the library files(e.g: python3.6, libpython3.so, libpython3.6m.so.1.0) are located at /usr/local/lib,

While you do not configure any environment before make & make install,

Now you need to add the load_library_path(LD_LIBRARY_PATH) of python3.6,

if you are using zsh, just:

cd ~

vim ~/.zshrc

Add the below code to ~/.zshrc:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/

Just use :wq to save and quit the configuration file of zsh,

also, you need to active the hnewable .zshrc:

source ~/.zshrc

then try:

python

If you use bash, just:

cd ~

vim ~/.bashrc

And the below code to ~/.bashrc:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/

Just use :wq to save and quit the configuration file of bash,

also, you need to active the newable .bashrc:

source ~/.bashrc

Now, for your turn!

First, you need to found out where libpython3.4m.so.1.0 is?

From you asked and told, I guess libpython3.4m.so.1.0 is located at

/data/virtualenv-test/lib/ because I saw your python is located at

/data/virtualenv-test/bin/python.

Second, add that loading library path to your bash's configuration file ~/.bashrc:

cd ~

vim ~/.bashrc

Use i to enter VIM editing state, and add the below code to ~/.bashrc:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/data/virtualenv-test/lib/

Use :wq to save and quit .bashrc, and active the newable .bashrc:

source ~/.bashrc

Third, test your installed Python.

All in all, you could change the upsatirs /data/virtualenv-test/lib/ to

yours(where libpython3.4m.so.1.0 is).

END!

vvvvv · Accepted Answer · 2022-04-12 12:41:22Z

2

I got it running by installing the package:

sudo apt-get install libpython3.x-dev

edited Apr 12, 2022 at 12:41

vvvvv

32.9k19 gold badges70 silver badges103 bronze badges

answered Oct 15, 2020 at 9:42

harbinger

1341 silver badge4 bronze badges

2 Comments

jaromrax Over a year ago

not on ubuntu 20.04

poleguy Over a year ago

Worked on ubuntu 24.04 using vitualenvwrapper and deadsnakes python3.11

Jake · Accepted Answer · 2020-03-03 18:16:20Z

1

On python 3.8, I resolved this by deleting the virtualenv directory (./venv in my case) and recreating using python's built-in venv module installed of the pip-installed virtualenv. I'm on arch linux and also first did sudo pacman -Syu. Python was originally installed using just sudo pacman -S python.

$ rm -r ./venv
$ python -m venv venv
$ . ./venv/bin/activate
$ python --version
Python 3.8.1

answered Mar 3, 2020 at 18:16

Jake

3,0907 gold badges35 silver badges41 bronze badges

Comments

vvvvv · Accepted Answer · 2022-04-12 12:53:18Z

0

I could solve it by installing libpython3.X without the (-dev). In your case, it gives:

sudo apt-get install libpython3.4

answered Apr 12, 2022 at 12:53

vvvvv

32.9k19 gold badges70 silver badges103 bronze badges

Comments

gdm · Accepted Answer · 2023-06-06 14:34:19Z

For Fedora or dnf-based system

# dnf search python3.10

=====================================================================
python3.10.i686 : Version 3.10 of the Python interpreter
python3.10.x86_64 : Version 3.10 of the Python interpreter
======================================================================= Name delle corrispondenze: python3.10 =======================================================================
python3.10-debug.i686 : Debug version of the Python runtime
python3.10-debug.x86_64 : Debug version of the Python runtime
python3.10-devel.i686 : Libraries and header files needed for Python development
python3.10-devel.x86_64 : Libraries and header files needed for Python development
python3.10-idle.i686 : A basic graphical development environment for Python
python3.10-idle.x86_64 : A basic graphical development environment for Python
python3.10-libs.i686 : Python runtime libraries
python3.10-libs.x86_64 : Python runtime libraries
python3.10-test.i686 : The self-test suite for the main python3 package
python3.10-test.x86_64 : The self-test suite for the main python3 package
python3.10-tkinter.i686 : A GUI toolkit for Python
python3.10-tkinter.x86_64 : A GUI toolkit for Python
# dnf install python3.10-devel

urig · Accepted Answer · 2023-09-08 08:13:24Z

0

For Github Actions, this could be worked around by installing the dependency directly, disabling the actions/setup-python cache and using the generic cache action instead:

   - uses: actions/setup-python@v4
      with:
        python-version: '3'
    - uses: actions/cache@v3
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip
    - run: pip install 'mydependency<2'
      shell: bash
    - run: ${{ github.action_path }}/myscript
      shell: bash

edited Sep 8, 2023 at 8:13

urig

17k33 gold badges122 silver badges210 bronze badges

answered May 12, 2023 at 0:59

abhijat_saxena

1,0208 silver badges23 bronze badges

Comments

GenuinePlaceholder · Accepted Answer · 2024-01-10 19:30:06Z

0

My python binary also had this error while using bazel with the linux-sandbox and --experimental_use_hermetic_linux_sandbox

This was caused because the binary we were running did not have access to /dev/, /proc, and /sys

After mounting those directories with --sandbox_add_mount_pair, it started working

answered Jan 10, 2024 at 19:30

GenuinePlaceholder

7051 gold badge10 silver badges25 bronze badges

Comments

Ge-CDU · Accepted Answer · 2024-10-03 06:36:28Z

0

Please refer to the question: Why: python3.11: error while loading shared libraries: libpython3.11.so.1.0: cannot open shared object file: No such file or directory

I have found the root cause of the issue, check /etc/ld.so.conf /etc/ld.so.conf.d/* and execute sudo ldconfig

answered Oct 3, 2024 at 6:36

Ge-CDU

631 silver badge7 bronze badges

Collectives™ on Stack Overflow

python: error while loading shared libraries: libpython3.4m.so.1.0: cannot open shared object file: No such file or directory

15 Answers 15

5 Comments

3 Comments

3 Comments

1 Comment

Comments

1 Comment

1 Comment

Comments

2 Comments

Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

15 Answers 15

5 Comments

3 Comments

3 Comments

1 Comment

Comments

1 Comment

1 Comment

Comments

2 Comments

Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related