/Python/How to write a correct python code

How to write a correct python code

$ pycodestyle optparse.py
optparse.py:69:11: E401 multiple imports on one line
optparse.py:77:1: E302 expected 2 blank lines, found 1
optparse.py:88:5: E301 expected 1 blank line, found 0
optparse.py:222:34: W602 deprecated form of raising exception
optparse.py:347:31: E211 whitespace before '('
optparse.py:357:17: E201 whitespace after '{'
optparse.py:472:29: E221 multiple spaces before operator
optparse.py:544:21: W601 .has_key() is deprecated, use 'in'

Source: docs.python-guide.org

How to write a correct python code

my_very_big_string = (
    "For a long time I used to go to bed early. Sometimes, "
    "when I had put out my candle, my eyes would close so quickly "
    "that I had not even time to say “I’m going to sleep.”"
)

from some.deep.module.inside.a.module import (
    a_nice_function, another_nice_function, yet_another_nice_function)

Source: docs.python-guide.org

How to write a correct python code

d = {'hello': 'world'}

print(d.get('hello', 'default_value')) # prints 'world'
print(d.get('thingy', 'default_value')) # prints 'default_value'

# Or:
if 'hello' in d:
    print(d['hello'])

Source: docs.python-guide.org

How to write a correct python code

a = [3, 4, 5]
a = [i + 3]

How to write a correct python code

four_lists = [[] for __ in range(4)]

Source: docs.python-guide.org

How to write a correct python code

a = [3, 4, 5]
b = a

# assign the variable "a" to a new list without changing "b"
a = [i + 3 for i in a]

Source: docs.python-guide.org

Similar codes

0 vote218 views2 answers
Flask conditional according to urrl
Python Flask
-1 vote179 views2 answers
Django cleanup
Python
0 vote180 views1 answer
How to capture video in google colab with python
Python
0 vote178 views1 answer
1036 solution python
Python
0 vote194 views1 answer
Extract year from astype('datetime64[ns]')
Python
4 votes178 views4 answers
Printing hello world in python
Python
0 vote220 views1 answer
Django create object with default today date
Python Django
0 vote194 views1 answer
Pip install rejson
Python
0 vote176 views1 answer
Custom django password checker
Python
73 votes222 views6 answers
Reverse a string in python
Python