pythonpath

I thought import sys sys.path.append("/home/me/mydir") is appending a dir to my pythonpath if I print sys.path my dir is in there. Then I open a new command and it is not there anymore. But somehow Python cant import modules I saved in that dir. What Am I doing wrong? I read .profile or .bash_profile will do the trick. Do I have to add: PATH="/Me//Documents/mydir:$PYTHONPATH" export PATH To make it work? Matthew Flaschen Modifications to sys.path only apply for the life of that Python interpreter. If you want to do it permanently you need to modify the PYTHONPATH environment variable:

Everywhere I see Python code importing modules using import sys or import mymodule How does the interpreter find the correct file if no directory or path is provided? dm03514 http://docs.python.org/3/tutorial/modules.html#the-module-search-path 6.1.2. The Module Search Path When a module named spam is imported, the interpreter first searches for a built-in module with that name. If not found, it then searches for a file named spam.py in a list of directories given by the variable sys.path . sys.path is initialized from these locations: The directory containing the input script (or the current

Edit: based on a Ulf Rompe's comment, it is important you use "1" instead of "0" , otherwise you will break sys.path . I have been doing python for quite a while now (over a year), and I am always confused as to why people recommend you use sys.path.append() instead of sys.path.insert() . Let me demonstrate. Let's say I am working on a module named PyWorkbooks (that is installed on my computer), but I am simultaneously working on a different module (let's say PyJob) that incorporates PyWorkbooks. As I'm working on PyJob I find errors in PyWorkbooks that I am correcting, so I would like to

I am using IntelliJ with the Python plugin and the Remote Interpreter feature to communicate with my Vagrant VM. It sets up the remote interpreter correctly to use my VM's interpreter. But, I use a custom PYTHONPATH in my VM, and I would like IntelliJ to recognize that path and include the modules in that path when developing. How do I configure IntelliJ/PyCharm's remote interpreter to use a custom PYTHONPATH on the VM? For PyCharm 5 (or 2016.1), you can: select Preferences > Project Interpreter to the right of interpreter selector there is a "..." button, click it select "more..." pop up a

Another developer and I disagree about whether PYTHONPATH or sys.path should be used to allow Python to find a Python package in a user (e.g., development) directory. We have a Python project with a typical directory structure: Project setup.py package __init__.py lib.py script.py In script.py, we need to do import package.lib . When the package is installed in site-packages, script.py can find package.lib . When working from a user directory, however, something else needs to be done. My solution is to set my PYTHONPATH to include "~/Project". Another developer wants to put this line of code

I want to run: python somescript.py somecommand But, when I run this I need PYTHONPATH to include a certain directory. I can't just add it to my environment variables because the directory I want to add changes based on what project I'm running. Is there a way to alter PYTHONPATH while running a script? Note: I don't even have a PYTHONPATH variable, so I don't need to worry about appending to it vs overriding it during running of this script. For Mac/Linux; PYTHONPATH=/foo/bar/baz python somescript.py somecommand For Windows, setup a wrapper pythonpath.bat ; @ECHO OFF setlocal set PYTHONPATH=