Miscellaneous

try:
    # Use "raise" to raise an error
    raise IndexError("This is an index error")
except IndexError as e:
    pass                 # Pass is just a no-op. Usually you would do recovery here.
except (TypeError, NameError):
    pass                 # Multiple exceptions can be handled together, if required.
else:                    # Optional clause to the try/except block. Must follow all except blocks
    print("All good!")   # Runs only if the code in try raises no exceptions
finally:                 # Execute under all circumstances
    print("We can clean up resources here")

values = (-x for x in [1,2,3,4,5])
gen_to_list = list(values)
# => [-1, -2, -3, -4, -5]
print(gen_to_list)

def double\_numbers(iterable):
    for i in iterable:
        yield i + i

Generators help you make lazy code.

# This is a single line comments.

""" Multiline strings can be written
 using three "s, and are often used
 as documentation.
"""

''' Multiline strings can be written
 using three 's, and are often used
 as documentation.
'''