PY3.W1309

F string without interpolation

Used when we detect an f-string that does not use any interpolationvariables, in which case it can be either a normal string or a bug in thecode.

Noncompliant Code:

x = 1
y = 2
print(f"x + y = x + y")

Compliant Code:

x = 1
y = 2
print(f"{x} + {y} = {x + y}")

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