How to use helper files in PyCharm

I am trying to follow along with a project written by Mike Smales - "Sound Classification using Deep Learning". In there, the author wrote a helper file called wavfilehelper.py:

wavehelper.py Code

import struct

class WavFileHelper():

wave_file = open(filename,"rb")

num_channels_string = fmt[10:12]
num_channels = struct.unpack('<H', num_channels_string)[0]

sample_rate_string = fmt[12:16]
sample_rate = struct.unpack("<I",sample_rate_string)[0]

bit_depth_string = fmt[22:24]
bit_depth = struct.unpack("<H",bit_depth_string)[0]

return (num_channels, sample_rate, bit_depth)


In his main program he calls the helper file like this:

from helpers.wavfilehelper import WavFileHelper

wavfilehelper = WavFileHelper()


However, when I run this block of code in PyCharm, it complains "ModuleNotFoundError: No module named 'helpers.wavfilehelper'"...how can I get this helper file to work in the PyCharm environment? Do I have to put the wavehelper.py file in a special folder to be called?

Any help will be greatly appreciated!

You've undoubtedly solved or worked-around this issue by now, but "helpers" or "utilities" or "UDFs" that get called like this need to exist in a folder within your project that contains a file called __init__.py. You can read up on how to structure your Python project from sites like this. See my project as an example: main.py does all the hard work and refers to helpers like you've shown above in the utils directory. See that special file I mentioned? That's the key to being able to import successfully.