#!/usr/bin/env python2
import os
import sys

# Verify - kernel's Python: use Python 2
print(sys.version_info)
assert sys.version_info[:2] == (2, 7)


# Verify - notebook server's Python: 'numpy' isn't installed
status_code = os.system("python3 -c 'import numpy'")
if status_code == 0:
    raise Exception("notebook server's Python: 'numpy' IS installed")

# Verify - notebook server's Python: 'parse' isn't installed
status_code = os.system("python3 -c 'import parse'")
if status_code == 0:
    raise Exception("notebook server's Python: 'parse' IS installed")

# Verify - notebook server's Python: 'nbgitpuller' is installed
status_code = os.system("python3 -c 'import nbgitpuller'")
if not status_code == 0:
    raise Exception("notebook server's Python: 'nbgitpuller' ISN'T installed")


# Verify - kernel's Python: 'nbgitpuller' isn't installed
try:
    import nbgitpuller
except ImportError:
    pass
else:
    raise Exception("kernel's Python: 'nbgitpuller' IS installed")

# Verify - kernel's Python: 'numpy' is installed
try:
    import numpy
except ImportError:
    raise Exception(
        "kernel's Python: 'numpy' ISN'T installed --- We probably setup a virtual env through pipenv but failed to enter it."
    )

# Verify - kernel's Python: 'parse' is installed
try:
    import parse
except ImportError:
    raise Exception("kernel's Python: 'parse' ISN'T installed")