ImportError: No module named <modulename> in python 2.7

Question

I am getting this error when I try to import a another python class in a different directory.

this is how my folder structure looks like:

main
    /prerequisites
         - __init__.py
         - BitesizeClusterInfo.py
         - ComponentStatus.py
__init__.py
BitesizeDecorator.py
BitesizeImp.py
BitesizeInterface.py
constants.py
execute.py
main.py

I am trying to import BitesizeDecorator.py from BitesizeClusterInfo.py and I get this error:

Traceback (most recent call last): File "ComponentStatus.py", line 1, in from BitesizeDecorator import BitesizeDecorator ImportError: No module named BitesizeDecorator

And this is how my code snippet for BitesizeClusterInfo.py looks like:

import os

from BitesizeDecorator import BitesizeDecorator
from execute import Execute

class BitesizeClusterInfo(BitesizeDecorator):
    def __init__(self, bitesize):
        super(BitesizeClusterInfo, self).__init__(bitesize)

    def test(self):
        super(BitesizeClusterInfo, self).test()

        # add command below
        print("\n[1] - Checking cluster info...\n")

        # grep the output for ease of reading
        cmd = "kubectl cluster-info | grep -E 'master|DNS'"
        print(Execute.check_if_exists(cmd))

Can someone please help me solve this?

Answer 1

这将是：

from main.BitesizeDecorator import BitesizeDecorator

Answer 2

You can change the position of the file BitesizeClusterInfo.py to the main folder to make you line work.

Or use

from main.BitesizeDecorator import BitesizeDecorator

and if your main folder is the project source :

from main.BitesizeDecorator import BitesizeDecorator