Calculation problem in a function in Python

Question

I'm trying to calculate something in a function with numbers from an imported list.

def calculate_powers(velocities_list):
 power_list = []
 for i in velocities_list:
 power = 8/27 * 1.225 * i * 8659
 power_list.append(power)
 print(power_list)

However, I get the following error:

File "C:\Users\Omistaja\PycharmProjects7円_1\wind_turbine.py", line 6, in calculate_powers
 power = 8/27 * 1.225 * i * 8659
TypeError: can't multiply sequence by non-int of type 'float'

What to do?

• Drecker: It seems like velocities_list is list of lists, not list of numbers as you think
• buran: Please, provide minimal reproducible example. Edit your question to include sample velocities_list.
• Ocaso Protal: Does this answer your question? Why do I get TypeError: can't multiply sequence by non-int of type 'float'?

Answer 1

try this :

def calculate_powers(velocities_list):
 power_list = []
 for i in velocities_list:
 power = float(8/27) * 1.225 * float(i) * float(8659)
 power_list.append(power)
 print(power_list)

Answer 2

your variable 'i' is probably string, you need to cenvert it to number(float or int,..)

power = 8/27 * 1.225 * float(i) * 8659

can you provide example of your velocities_list?