如何写入现有excel文件的B列

Question

I am completely new to programming and I have a problem like every beginner I guess:). So basically I am trying to convert/calculate some numbers using this formula: (((prices*1.1)/8.6)+1+3.75+1)/0.76 and I could convert every number (there are like 1000) with this code

import pandas as pd
data = pd.read_excel(r"C:\\Users\\bbura\\Downloads\\test1.xlsx")
list = data["TL Price"].tolist()
for prices in list:
  result = (((prices*1.1)/8.6)+1+3.75+1)/0.76
  print(result)

I need to write these new prices into column B of test1.xlsx file and I have no idea how to do that.

Thanks for your help and please forgive my bad english.

Answer 1

Alignment to your code you can do :

data = pd.read_excel(r"C:\\Users\\bbura\\Downloads\\test1.xlsx")
list_ = data["TL Price"].tolist()
B_col = []
for prices in list:
   result = (((prices*1.1)/8.6)+1+3.75+1)/0.76
   B_col.append(result)

data['B'] = B_col

But this involves lot of lines. One liner by @Myrt is more useful. Also, you are using list as variable name, which is conflicting as list is predefined keyword in python.

Answer 2

您可能想使用应用功能

data['B']=data['TL Price'].apply(lambda x: (((x*1.1)/8.6)+1+3.75+1)/0.76)