I'm importing helpers.py file from <project_root>/lib/helpers.py location to one of the sub-folder in my project. I am using sys package. But I'm getting ModuleNotFound error while importing.
Given below is the code I'm using.
import sys
sys.path.insert(0, '/d/Development/s5-data-analysis/lib/')
import helpers
The sub-folder is /d/Development/s5-data-analysis/notebooks/my.ipynb . What is the correct way of importing this helper.py to my.ipnb .
This looks to me like you are using Git Bash on Windows (or some other Unix-Windows-Layer), which has its own builtin path translation. Other programs like will only be able to use the usual path names, in this case d:\Development\s5-data-analysis\lib:
sys.path.insert(0, r"d:\Development\s5-data-analysis\lib")
You can convert lib folder into a package, by adding __init__.py to lib folder. In this file, you can import helpers module like this:
from . import helpers
Finally, on your actual codefile, import helpers module like this:
from lib import helpers
There are various ways through which you can import.
Example 1, Import a python module with python interpreter:
1.Put this in /home/el/foo/fox.py:
def what_does_the_fox_say():
print("vixens cry")
2.Get into the python interpreter:
nag@sahil:/home/el/foo$ python
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
>>> import fox
>>> fox.what_does_the_fox_say()
vixens cry
>>>
Example 2, Use execfile or (exec in Python 3) in a script to execute the other python file in place:
1.Put this in /home/el/foo2/mylib.py:
def moobar():
print("hi")
2.Put this in /home/el/foo2/main.py:
execfile("/home/el/foo2/mylib.py")
moobar()
Example 3. Use from ... import ... functionality:
1.Put this in /home/el/foo3/chekov.py:
def question():
print "where are the nuclear wessels?"
2.Put this in /home/el/foo3/main.py:
from chekov import question
question()
