Problem importing python file from current directory

[dompas]

I have tried the solution suggested on #48 , but it is not working. I am using Julia 0.6.2 on Windows with Python 2.7 and the program is

using PyCall
unshift!(PyVector(pyimport("sys")["path"]),"")
@pyimport Leitura_Sistema_REDS as ls

and I get the error message

ERROR: LoadError: PyError (ccall(@pysym(:PyImport_ImportModule), PyPtr, (Cstring,), name)

The Python package Leitura_Sistema_REDS could not be found by pyimport. Usually this means
that you did not install Leitura_Sistema_REDS in the Python version being used by PyCall.

[YP-Ye]

I get the same error. unshift!(PyVector(pyimport("sys")["path"]),"") does not work.

[stevengj]

What is your current directory? i.e. what is pwd()? Are you sure that you are in the directory with the module that you want?

[YP-Ye]

Sorry, I found that my problem is caused by a python module named gurobipy. The problem is solved after reinstalling the module.

[tkf]

Adding an empty string to sys.path is not really a good practice. I think the right approach is pushfirst!(PyVector(pyimport("sys")["path"]), @__DIR__). This way, running Julia script works in any directory. This is close to what Python interpreter does when executing a script (it does not add "" to sys.path). Here is an example:

$ cat script.jl
using PyCall
pushfirst!(PyVector(pyimport("sys")["path"]), @__DIR__)
pyimport("mymodule")[:main]()

$ cat mymodule.py
def main():
    import sys
    print(*sys.path, sep="\n")


if __name__ == "__main__":
    main()

$ cd /

$ julia /PATH/TO/DIR/script.jl
/PATH/TO/DIR
/usr/lib/python37.zip
/usr/lib/python3.7
/usr/lib/python3.7/lib-dynload
/usr/lib/python3.7/site-packages

$ python /PATH/TO/DIR/mymodule.py  # prints the same paths

Of course, pyimport has to be done in __init__ if you are creating a Julia module.

(We probably should add this to README)

[MaxandreJ]

In the README I think instead of suggesting the command pushfirst!(PyVector(pyimport("sys")["path"]), "") I would have written pushfirst!(PyVector(pyimport("sys")["path"]), "<path_to_be_added>") or something like this. I found myself replacing "path" by the path I wanted to add... I'm sure other people will make the same mistake.