NameError after packaging Python code

Question

I've been using IPython for sometime without ever having to package code. I glanced through the following pages and setup a directory structure for my modules and now use IPython to initiate the program.

https://docs.python.org/3/reference/import.html

https://docs.python.org/3/tutorial/modules.html

http://pythoncentral.io/how-to-create-a-python-package/

Here is a gist of my setup

root foder

1. modules(directory)

   1.1 external.py

   1.2 getdata.py

2. driver.ipynb

I created a directory called modules and created two files.

modules (directory)

-- external.py (contains the following)

import glob # and many other import statements

-- getdata.py (contains the following)

def funcname():
    file_list = glob.glob("Data/")

def other_func():
    x = x + 3

Now I run the following code in an IPython notebook

from modules import external
from modules.getdata import * 
# so that I can funcname() instead of modules.getdata.funcname()

other_func() # runs as expected
funcname() # NameError global name 'glob' is not defined

Running glob.glob("Data/") in the IPython notebook does not give out any error.

How do I fix this namespace issue without renaming any function? I have a dozen functions and they all have the same issue.

Edit 1:- I forgot to mention stuff that I've already tried

import statement in getdata.py

import glob
def funcname():
    file_list = glob.glob("Data/")

def other_func():
    x = x + 3

I have more than one file which uses glob. Is there any better alternative other that importing modules in every file?

Answer 1

Add import glob in getdata.py (where the glob module is used), not in the external.py.

import glob  # <--

def funcname():
    file_list = glob.glob("Data/")

def other_func():
    x = x + 3