Linux find python library

find_libpython

A pypi project version of this gist, which also appears within the PyCall library.

The library is designed to find the path to the libpython dynamic library for the current Python environment. It should work with many types of installations, whether it be conda-managed, system-managed, or otherwise. And it should function on Windows, Mac OS/OS X, and any Linux distribution.

This code is useful in several contexts, including projects that embed a Python interpreter into another process, or Python library build systems.

Usage

find_libpython is both a script and a Python package. Usage as a script is useful in contexts like obtaining the path to libpython for linking in makefile-based build systems. It could also be used to determine the path to libpython for embedding a Python interpreter in a process written in another language. In that case the recommended usage is to simply call the script in a subprocess with no arguments and parse the output.

> find_libpython /home/kaleb/miniconda3/envs/test/lib/libpython3.8.so.1.0 

> find_libpython --help usage: find_libpython [-h] [--verbose] [--list-all | --candidate-names | --candidate-paths] Locate libpython associated with this Python executable. optional arguments: -h, --help show this help message and exit --verbose, -v Print debugging information. --list-all Print list of all paths found. --candidate-names Print list of candidate names of libpython. --candidate-paths Print list of candidate paths of libpython. 

Usage as a library might occur when you need to obtain the path to the library in a Python-based build system like distutils. It is recommended to use the find_libpython method which will return the path to libpython as a string, or None if it cannot be found.

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Find location of library python linux

In the Windows environment, the Python_Path symbol in the Windows registry is used to locate modules., PYTHONHOME is used to define directories that are part of the Python installation. If this environment variable is not defined, then a standard directory structure is used. For Windows, the standard location is based on the directory into which Python is installed. For most Linux environments, Python is installed under /usr/local, and the libraries can be found there. For Mac OS, the home directory is under /Library/Frameworks/Python.framework., PYTHONHOME is used to define directories that are part of the Python installation. If this environment variable is not defined, then a standard directory structure is used. For Windows, the standard location is based on the directory into which Python is installed. For most Linux environments, Python is installed under /usr/local, and the libraries can be found there. For Mac OS, the home directory is under /Library/Frameworks/Python.framework. ,Installing a module, then, is a matter of assuring that the module appears on the search path. There are four central methods for doing this.

For modules to be available for use, the Python interpreter must be able to locate the module file. Python has a set of directories in which it looks for module files. This set of directories is called the search path, and is analogous to the PATH environment variable used by an operating system to locate an executable file.

Answer by Zuri Roth

On windows you can find the location of the python module as shown below:i.e find rest_framework module ,How do I learn where the source file for a given Python module is installed? Is the method different on Windows than on Linux?,datetime is a builtin module, so there is no (Python) source file.,You can also find the latest Mercurial version on the web at https://hg.python.org/cpython/file/tip/Modules/_datetimemodule.c

For example, if you want to find the datetime code for python 2.6, you can look at

Python-2.6/Modules/datetimemodule.c 

Answer by Priscilla Robertson

For a pure python module you can find the location of the source files by looking at the module.__file__. For example,, Running «python -v»from the command line tells you what is being imported and from where. This is useful if you want to know the location of built in modules.,How do I calculate the date six months from the current date using the datetime Python module?,How do I find the location of my Python site-packages directory?

For a pure python module you can find the location of the source files by looking at the module.__file__. For example,

 >>> import mymodule >>> mymodule.__file__ C:/Users/Ayush/mymodule.py 

Answer by Murphy Woods

So how does the Ubuntu distribution of Python know to use /usr/local/lib/python2.7/dist-packages in sys.path? It’s hardcoded into their site module! First, find where the site module code lives:,For Debian and derivatives, this sys.path is augmented with directories for packages distributed within the distribution. Local addons go into /usr/local/lib/python/dist-packages, Debian addons install into /usr//python/dist-packages. /usr/lib/python/site-packages is not used.,As the docs explain, sys.path is populated using the current working directory, followed by directories listed in your PYTHONPATH environment variable, followed by installation-dependent default paths, which are controlled by the site module.,So Python will find any packages that have been installed to those locations.

> import sys > print '\n'.join(sys.path) /usr/lib/python2.7 /usr/lib/python2.7/plat-x86_64-linux-gnu /usr/lib/python2.7/lib-tk /usr/lib/python2.7/lib-old /usr/lib/python2.7/lib-dynload /usr/local/lib/python2.7/dist-packages /usr/lib/python2.7/dist-packages 

Answer by Dominik Brown

Run pip show to show Debian-style package information:,.__file__ lets you identify the location of a specific module: (difference),.__path__ lets you identify the location(s) of a specific package: (details), .__file__ lets you identify the location of a specific module: (difference) $ python3 -c «import os as _; print(_.__file__)» /usr/lib/python3.6/os.py

Global site-packages («dist-packages») directories are listed in sys.path when you run:

For a more concise list run getsitepackages from the site module in Python code:

python -c 'import site; print(site.getsitepackages())' 

Note: With virtualenvs getsitepackages is not available, sys.path from above will list the virtualenv’s site-packages directory correctly, though. In Python 3, you may use the sysconfig module instead:

python3 -c 'import sysconfig; print(sysconfig.get_paths()["purelib"])' 

Answer by Warren Kim

Write a Python program to find the location of Python module sources.,Scala Programming Exercises, Practice, Solution,Location of Python module sources:,Previous: Write a Python program to test if a variable is a list or tuple or a set. Next: Write a Python function to check whether a number is divisible by another number. Accept two integers values form the user.

import imp print("Location of Python os module sources:") print(imp.find_module('os')) print("\nLocation of Python sys module sources:") print(imp.find_module('datetime')) 

Location of Python os module sources: (, '/usr/lib/python3.6/os.py', ('.py', 'r', 1)) Location of Python sys module sources: (, '/usr/lib/python3.6/datetime.py', ('.py', 'r', 1)) 

import os print("\nList of directories in os module:") print(os.path) print("\nList of directories in sys module:") import sys print(sys.path) 

List of directories in os module: List of directories in sys module: ['/tmp/sessions/9ab477032ea1081a', '/trinket/python3', '/usr/lib/python36.zip', '/usr/lib/python3.6', '/usr/lib/python3.6/lib-dynload', '/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages'] 

Answer by Nehemiah Jaramillo

Python string length | len(),Python String find() method,First, it searches for the module in the current directory.,Read JSON file using Python

Answer by Jose Conley

Is there any way I can let the shell know/choose at runtime which python version is to be used for further code execution?,I have just migrated from Windows environment. I have installed Python 3.2 in a separate directory. How can I get the python installation path in Ubuntu shell?, 1 Thanks @Thomas ! This command ‘whereis python2.7’ is displaying many paths, but I think there has to be single python installation directory ! – avimehenwal Feb 27 ’13 at 20:08 ,Are there any environment variables and search path kind of things in Ubuntu Linux as well?

whereis python2.7 whereis python3.2 

For finding every file that apt-get has copied for installation use:

dpkg -S python2.7 dpkg -S python3.2 

But maby it is recommend to save it in a textfile, because the output is to large.

dpkg -S python2.7 >log.txt gedit log.txt 

for running .py file with python 3.2

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Find Location Of Library Python Linux With Code Examples

Hello everybody, on this put up we are going to take a look at how you can remedy Find Location Of Library Python Linux in programming.

import module_name print(module_name.__file__)

As we’ve seen, the Find Location Of Library Python Linux drawback was solved by utilizing numerous totally different cases.

Where is Python library path?

How to seek out path data

• Open the Python Shell. You see the Python Shell window seem.
• Type import sys and press Enter.
• Type for p in sys.path: print(p) in a brand new cell and click on Run Cell. You see a list of the trail data, as proven within the determine beneath.

How do I discover the Python library?

• On your VM or host, obtain Python 3.6 or later.
• Choose customized set up and select the next choices.
• After Python is put in, set up the requests and psnow Python libraries.
• Verify the Python libraries are put in appropriately.
• At the Python immediate, kind modules.

Where are Python libraries put in Ubuntu?

A non-Debian Python set up, akin to Python compiled from supply, will set up Python packages into /usr/native/lib/pythonX.

What is __ path __ in Python?

If you modify __path__ , you possibly can pressure the interpreter to look in a unique listing for modules belonging to that package deal. This would can help you, e.g., load totally different variations of the identical module based mostly on runtime situations.23-Apr-2010

How do I do know if a Python module is put in Linux?

To examine all of the put in Python modules, we are able to use the next two instructions with the ‘pip’: Using ‘pip freeze’ command. Using ‘pip listing command.

Where are pip packages put in Linux?

By default, on Linux, Pip installs packages to /usr/native/lib/python2. 7/dist-packages. Using virtualenv or –person throughout set up will change this default location. If you employ pip present be sure to are utilizing the fitting person or else pip might not see the packages you’re referencing.

How do I do know if a Python package deal is put in Linux?

The Pip, Pipenv, Anaconda Navigator, and Conda Package Managers can all be used to listing put in Python packages. You may also use the LivelyState Platform’s command line interface (CLI), the State Tool to listing all put in packages utilizing a easy “state packages” command.09-Aug-2022

Where are Python dependencies put in Linux?

Copy the listing of dependencies, together with model data right into a necessities. txt file. The dependencies will probably be downloaded to the pkgs folder within the AnacondaConda root listing. The root listing in each Linux and Windows is the AnacondaConda set up listing.05-Aug-2022

What is a Python library?

A Python library is a group of associated modules. It comprises bundles of code that can be utilized repeatedly in several packages. It makes Python Programming less complicated and handy for the programmer. As we need not write the identical code repeatedly for various packages.18-Oct-2021

Why cannot Python discover my module?

This is attributable to the truth that the model of Python you are operating your script with shouldn’t be configured to seek for modules the place you have put in them. This occurs once you use the incorrect set up of pip to put in packages.26-May-2020

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