Python Cheatsheet

python-cheatsheet.py

# All values are considered "truthy" except for the following, which are "falsy":

None
False
0
0.0
0j
Decimal(0)
Fraction(0, 1)
[] - an empty list
{} - an empty dict
() - an empty tuple
'' - an empty str
b'' - an empty bytes
set() - an empty set
an empty range, like range(0)
objects for which
obj.__bool__() returns False
obj.__len__() returns 0

# Pretty Print dictionary
import json
print(json.dumps({'a':2, 'b':{'x':3, 'y':{'t1': 4, 't2':5}}}, sort_keys=True, indent=4))