Python TypeError: 'tuple' object is not callable when using list comprehension inside for loop

I'm trying to generate a list of strings using a list comprehension, where the string is formatted using f-strings:

features = [("month", (1, 12)), ("day_of_year", (1, 365))]
for feature, range in features:
  cols= [f"transformed_{feature}_period_{i:02d}" for i in range(12)]

If I run this code, I get an error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[4], line 3
      1 features = [("month", (1, 12)), ("day_of_year", (1, 365))]
      2 for feature, range in features:
----> 3     cols= [f"transformed_{feature}_period_{i:02d}" for i in range(12)]

TypeError: 'tuple' object is not callable

I still get the error even if I remove the variables from the string:

for feature, range in features:
  cols= ["transformed_feature_period" for i in range(12)]

I don't understand why the interpreter is complaining that I'm trying to call a tuple. I'm able to perform other operations, such as actual function calling and asserts inside the outer for loop, but I keep bumping into this error when trying to use a list comprehension.

Thanks in advance for any help.

If you don't actually use the range,

for feature, _ in features:
    ...

If you only care about the endpoints of the range,

for feature, (start, stop) in features:
    ...

If you really need a reference to the tuple as a whole, pick a name that doesn't shadow the built-in type you use later:

for feature, feature_range in features:
    ...

I don't recommend using builtins.range to access the shadowed type when it's simpler to provide a more accurate name for the index variable in the first place.

Make sure you change your Jupyter notebook or anyother idle you are using because the range() function will become tuple as it will override the buitin range .

features = [("month", (1, 12)), ("day_of_year", (1, 365))]
for feature, r in features:
    print(feature, range(int(r[0]),int(r[1])))

#output

month range(1, 12)
day_of_year range(1, 365)

So, this will be the final code:

features = [("month", (1, 12)), ("day_of_year", (1, 365))]
for feature, r in features:
  cols= [f"transformed_{feature}_period_{i:02d}" for i in range(int(r[0]),int(r[1]))]

print(cols)
['transformed_day_of_year_period_01',
 'transformed_day_of_year_period_02',
 'transformed_day_of_year_period_03',
 'transformed_day_of_year_period_04',
 'transformed_day_of_year_period_05',
  ....
 'transformed_day_of_year_period_364']