Learning Python, from a VBA programmer's perspective

[tiredofit]

It has often been said that if one were to learn a new programming language, Python would be the choice of many.

I have dabbled with it and know some basics but do not feel comfortable.

If I can solve the equivalent problem in Excel, then it'll make more sense.

Suppose I have a column of numbers in column A of Excel and simply want to add 10 to every cell. I know how to do that in VBA but how would one go about in Python?

The thing holding me back is that in Excel VBA, you have the luxury of properties such as Range, Column, Cells, etc, I can write a For Each Loop of the range or alternatively I can read the entire column into an array, manipulate, then use Resize to paste it back onto the worksheet.

I know you have tuples, lists, etc. in Python.

Thanks

 

[jay_py]

I use both Excel and Python at my work regularly, their combination is a very powerful tool set.

The good thing about Python is that amazing people have built powerful open source libraries that allow you do almost everything you can imagine.

To answer your question, you have some numbers in column A, and you want to add 10 to every cell. Assuming the column A has as column head "Col A"

import pandas as pd
df = pd.read_excel('your_file.xls')
df['Col B'] = df['Col A'] + 10

df here refers to a "dataframe", what does it look like? It's basically a tabular data, exactly the same as an Excel sheet!

 

[tiredofit]

Th

I use both Excel and Python at my work regularly, their combination is a very powerful tool set.

The good thing about Python is that amazing people have built powerful open source libraries that allow you do almost everything you can imagine.

To answer your question, you have some numbers in column A, and you want to add 10 to every cell. Assuming the column A has as column head "Col A"

import pandas as pd
df = pd.read_excel('your_file.xls')
df['Col B'] = df['Col A'] + 10

df here refers to a "dataframe", what does it look like? It's basically a tabular data, exactly the same as an Excel sheet!
View attachment 10171

Thanks for this, greatly appreciated.