This rule is deprecated; use S5905 instead.
Why is this an issue?
Parentheses are not required after the assert, del, elif, except, for,
if, in, not, raise, return, while, and yield keywords, and
using them unnecessarily impairs readability. They should therefore be omitted.
Noncompliant code example
x = 1
while (x < 10):
print "x is now %d" % (x)
x += 1
Compliant solution
x = 1
while x < 10:
print "x is now %d" % (x)
x += 1
