def __init__(self, command_str, curr_layouts):
'''Provides validation of user commands'''
self.pass_cmd = False
if command_str == PASS_CMD:
self.pass_cmd = True
self.card = None
self.layout = None
else:
# Separate command string and pass to relevant constructor
self.card = Card.create_from_user_cmd(command_str.split('L')[0])
self.layout = curr_layouts.get_layout_by_id(
int(command_str.split('L')[1])
)
