Python
/
Functions
- 1 Language 9
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Hello World S
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Functions S
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Conditional A S
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Operators S
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While S
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- 2 Strings 7
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Slice S
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Regex A S
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- 3 Collections 5
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Lists S
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Tuples S
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- 4 Functions 5
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Recursion S
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Factorial S
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Modulus S
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Reassignment S
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Approximate S
- 5 Storage 8
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Files S
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Databases S
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With open S
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Shelve A S
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Zip S
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Csv S
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- 7 Goodies 5
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Conditional Expression S
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List Comprehension A S
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Pythagora A S
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Q
Python Functions Reassignment
A variable must be assigned before use In Python it is legal to reassign a variable y = 0, y = y + 1 x = 5, x = 7
Assign
A variable must be assigned before use.
"""A variable must be assign before use
"""
y = 0
y = y + 1
assert y == 1 # pass
try:
z = z + 1
except NameError:
print('Variable z not defined')
Reassignment
p120 In Python it is legal to reassign a variable.
"""In Python it is legal to reassign a variable
An assignment can make two variables equal, but not permanent
"""
x = 5
x = 7
assert x == 7 # pass
assert x != 5 # pass
a = 1
b = 1
assert a == b # pass
a = 2
assert a != b # pass
➥ Questions
Last update: 60 days ago