Project_template.py

import gzip
import base64
import os
import sys
sys.path.append('/kaggle/working')

# this is base64 encoded source code
file_data = {...}

os.system('mkdir mercari')

for fn, encoded in file_data.items():
    print(fn)
    with open('mercari/' + fn, 'wb') as out:
        out.write(gzip.decompress(base64.b64decode(encoded)))

with open('setup.py','wt') as out:
    out.write("""
from setuptools import setup

setup(
    name='mercari',
    packages=["mercari"],
)
""")

def run(command):
    os.system('export PYTHONPATH=${PYTHONPATH}:/kaggle/working && ' + command)

run('python setup.py develop --install-dir /kaggle/working')

run('python mercari/main.py')