Unused variable 'x'
488 .reset_index()
489 .rename(columns={"level_1": "", 0: "Returns"})
490 )
491 x = _sns.histplot( 492 data=combined_returns,
493 x="Returns",
494 bins=bins,
Description
An unused variable takes up space in the code, and can lead to confusion, and it should be removed. If this variable is necessary, name the variable _ to indicate that it will be unused, or start the name with unused or _unused.
Bad practice
def update():
for i in range(10): # Usused variable `i`
time.sleep(0.01)
display_result()
Preferred:
def update():
for _ in range(10):
time.sleep(0.01)
display_result()