40 lines
939 B
Plaintext
40 lines
939 B
Plaintext
This rule raises an issue when a pre/post increment or decrement operator is used.
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== Why is this an issue?
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Python has no pre/post increment/decrement operator. For instance, ``x{plus}{plus}`` and ``++x--++`` will fail to parse. More importantly, ``{plus}{plus}x`` and ``++--x++`` will do nothing. To increment a number, simply write ``++x += 1++``.
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=== Code examples
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==== Noncompliant code example
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[source,python,diff-id=1,diff-type=noncompliant]
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----
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++x # Noncompliant: pre and post increment operators do not exist in Python.
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x-- # Noncompliant: pre and post decrement operators do not exist in Python.
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----
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==== Compliant solution
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[source,python,diff-id=1,diff-type=compliant]
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----
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x += 1
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x -= 1
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Python does not include the [pre|post][increment|decrement] operator.
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endif::env-github,rspecator-view[]
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