Python collections cheat sheet

sum_of_elements  = sum(<collection>)
elementwise_sum  = [sum(pair) for pair in zip(list_a, list_b)]
sorted_by_second = sorted(<collection>, key=lambda el: el[1])
sorted_by_both   = sorted(<collection>, key=lambda el: (el[1], el[0]))
flatter_list     = list(itertools.chain.from_iterable(<list>))
product_of_elems = functools.reduce(lambda out, el: out * el, <collection>)
list_of_chars    = list(<str>)

Source: gto76.github.io

Similar codes

0 vote341 views1 answer
Python requests json as dict
Python
0 vote334 views1 answer
Keras model predict list of input tensors
Python
0 vote337 views1 answer
Python string match http
Python
80 votes345 views4 answers
Pip for python
Python
0 vote324 views2 answers
Business logic code where located in django rest framework
Python Django
1 vote292 views1 answer
Keyerror: 'OUTPUT_PATH'
Python
6 votes356 views6 answers
Best ide for python
Python
0 vote343 views1 answer
Sys.path[0]
Python
1 vote330 views1 answer
How to convert kg to g using python
Python
1 vote338 views1 answer
Windows alert python
Python