Import python package from local directory into interpreter

Question

I m developing testing a package in my local directory  I want to import it in the interpreter  v2 5   but sys path does not include the current directory  Right now I type in sys path insert 0       Is there a better way    Also    from   import mypackage   fails with this error   ValueError  Attempted relative import in non-package

User · Answer

If you want to run an unmodified python script so it imports libraries from a specific local directory you can set the PYTHONPATH environment variable - e.g. in bash:

export PYTHONPATH=/home/user/my_libs
python myscript.py

If you just want it to import from the current working directory use the . notation:

export PYTHONPATH=.
python myscript.py

User · Answer

Keep it simple    try       from   import mymodule        myapp  case  except       import mymodule                 main    case

User · Answer

See the documentation for sys path   http   docs python org library sys html sys path  To quote      If the script directory is not available  e g  if the interpreter is invoked interactively or if the script is read from standard input   path 0  is the empty string  which directs Python to search modules in the current directory first    So  there s no need to monkey with sys path if you re starting the python interpreter from the directory containing your module   Also  to import your package  just do   import mypackage   Since the directory containing the package is already in sys path  it should work fine

User · Answer

Inside a package if there is setup py  then better to install it  pip install -e

User · Answer

Using sys path should include current directory already   Try   import     or   from   import sth   however it may be not a good practice  so why not just use   import mypackage

User · Answer

I used pathlib to add my module directory to my system path as I wanted to avoid installing the module as a package and  maninthecomputer response didn t work for me import sys from pathlib import Path  cwd   str Path   file    parent  sys path insert 0  cwd  from my module import my function

User · Answer

You can use relative imports only from in a module that was in turn imported as part of a package -- your script or interactive interpreter wasn t  so of course from   import  which means  import from the same package I got imported from   doesn t work  import mypackage will be fine once you ensure the parent directory of mypackage is in sys path  how you managed to get your current directory away from sys path I don t know -- do you have something strange in site py  or       To get your current directory back into sys path there is in fact no better way than putting it there

User · Answer

A simple way to make it work is to run your script from the parent directory using python s -m flag  e g  python -m packagename scriptname  Obviously in this situation you need an   init   py file to turn your directory into a package

User · Answer

A bit late to the party  but this is what worked for me    gt  gt  gt  import sys  gt  gt  gt  sys path insert 0        Apparently  if there is an empty string  Python knows that it should look in the current directory  I did not have the empty string in sys path  which caused this error

[python] Import python package from local directory into interpreter

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