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# coding=utf-8
# flake8: noqa F821
"""
This is a Python script intended to be used with the "python_scripting.py" cmd2 example application.
To run it you should do the following:
./python_scripting.py
run_pyscript scripts/conditional.py directory_path
Note: The "app" function is defined within the cmd2 embedded Python environment and in there "self" is your cmd2
application instance. Note: self only exists in this environment if self_in_py is True.
"""
import os
import sys
if len(sys.argv) > 1:
directory = sys.argv[1]
print('Using specified directory: {!r}'.format(directory))
else:
directory = 'foobar'
print('Using default directory: {!r}'.format(directory))
# Keep track of where we stared
original_dir = os.getcwd()
# Try to change to the specified directory
result = app('cd {}'.format(directory))
# Conditionally do something based on the results of the last command
if result:
print(f"STDOUT: {result.stdout}\n")
print(f"STDERR: {result.stderr}\n")
print('\nContents of directory {!r}:'.format(directory))
result = app('dir -l')
print(f"STDOUT: {result.stdout}\n")
print(f"STDERR: {result.stderr}\n")
print('{}\n'.format(result.data))
# Change back to where we were
print('Changing back to original directory: {!r}'.format(original_dir))
app('cd {}'.format(original_dir))
else:
# cd command failed, print a warning
print('Failed to change directory to {!r}'.format(directory))
print(f"STDOUT: {result.stdout}\n")
print(f"STDERR: {result.stderr}\n")
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