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Python 3 - Intermediate for Data Cheat Sheet (DRAFT) by

Focus on scripting for data. Reference to what I personally forget syntax on.

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Syntax, Oh How You've Changed

Comments
Case-s­ens­itive
' versus "
Tomato, Toma-to
Escape
\, 
'Admiral Hopper\'s Great!'
Test
 
if:
 
elif:
 
else:
Catch Errors
 
try {} else {}
Loops
 
for hero in sheros:
, 
while cops > 0:
Functions
 
def inclus­ion­(ax­is_­of_­opp­res­sion, status­=True):

Strings, Please Don't Make Spaghetti

.count­('Ada')
Ada is in the list X times
 
.repla­ce(­'he­t',­'qu­eer')
history to future
 
.strip()
whites­pace, not your t-shirt
 
"My {0} used {1}.".f­orm­at(­"­Mom­"­,"punch cards")

List, I will finish you

Order
 
.sort(key=len, revers­e=True)
Z to A. 
len
is f(x) 
.sorted()
 for any iterable
Subset
 
kids[1:3]
get index 1 & 2 (Slice)
List Math
 
mylist + mylist
== 
mylist * 2
Contains?
 
'asexual' in sexual­_or­ien­tations
From the end
 
mylist[-2]
CRUD
 
.append()
, __, __, 
.pop()
Nest
 
family­[0][0]
get Drag Grandchild

Dictio­naries, Let's Get Real

>>> words = {'white supremacy': 'systemic racism',
    'patriarchy': 'sexism'}
>>> words.keys()
dict_keys(['white supremacy', 'patriarchy'])
>>> words.values()
dict_values(['systemic racism', 'sexism'])

Compare & Contrast, A Non-Essay

Even?
 
10 % 2
is 0, so True
Contains Element
Contains Sub-string
 

Data Libraries, Dewey to my CSVs

import numpy as np
import pandas as pd