Python Cheat Sheet for Work
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Python Shell
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$ python
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Run Script/File
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$ python <filename>.py
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Boolean
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True; False
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Numeric
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int(str); float(str)
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String
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'abcdef';
str(number) |
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List
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['abc', 1, 2];
list(col) |
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Tuple (cannot update)
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('abc', 1, 2);
tuple(col) |
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Dictionary
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{'name': 'john', 'num': 1};
dict['key'] = val; obj.__dict__ |
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Set (unique)
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set(col)
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Modulus
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1 % 2 == 1
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Exponent
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9 ** 2 == 81
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Increment
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c += a ~~ c=c+a
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Decrement
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c -= a ~~ c=c-a
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Logical AND
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(True and False) == False
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Logical OR
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(True or False) == True
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Membership
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1 in [1,2,3] == True;
1 not in [1,2,3] == False |
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Object
Identity |
Obj1 is Obj2
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Substring
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'abcd'[1:] == 'bcd';
'abcd'[:-1] == 'abc' |
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Find
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str.find(otherstr)
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Check if number
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str.isdigit()
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Join
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"-".join(["a","b"])
== "a-b" |
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Length
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len(str)
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Lower, Upper Case
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str.lower();
str.upper() |
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Split
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"a b".split(" ")
==['a','b'] |
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Index
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['a', 'b', 'c'][1:]
== ['b','c'] |
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Length
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len([1,2,3]) == 3
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Concontenate
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[1,2] + [3,4] == [1,2,3,4]
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Append
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[1,2].append(3) == [1,2,3]
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Pop
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[1,2,3].pop(1) == 2
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Remove
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[1,2,3].remove(1)
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Sort
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[2,1,3].sort() == [1,2,3]
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