def get_launchpad(launchpad_file=None):
"""
Returns a LaunchPad object. If the launchpad_file is None, then try to auto load from environment
Args:
launchpad_file (File-like): A file-like or file path to the LaunchPad file.
Returns:
LaunchPad
"""
if launchpad_file:
if isinstance(launchpad_file, file):
# a file object was found
ext = launchpad_file.name.split('.')[-1]
if ext == 'yaml':
launchpad = LaunchPad.from_format(launchpad_file.read(),
f_format='yaml')
else:
# assume json
launchpad = LaunchPad.from_format(launchpad_file.read())
else:
# assume launchpad_file is a path
launchpad = LaunchPad.from_file(launchpad_file)
else:
launchpad = LaunchPad.auto_load()
return launchpad
