How to permanently +1 a variable outside of a for loop - python-3.x

Question

I have a Python script that pulls cryptocurrency data from Yahoo Finance. It scrapes this data and then inputs it into a Google Sheet. What I want is for this script to run once per day, which I will schedule through task scheduler, and each day pull the data from Yahoo Finance and then input into the sheet.
I want this spreadsheet to store data historically. For example, first column = today's data, second column = tomorrow's data (which the script will collect when it runs tomorrow) which means the column value needs to +1 after the script runs every time. I've put the column number into a variable, so what I'm essentially trying to do is this;
today, c
tomorrow, c + 1
day after, c + 2
and so on, so that the sheet gets filled out and the data doesn't get overwritten. I doubt there's a way to permanently change the value of the variable other than going into the script and changing the value of c manually before it runs. Is there any other way to go about this?
Not sure how to tackle this - c = c + 1 at the end of the function was my best guess but I know this won't work. The only other thing I can think of is to write out this function hundreds of times, first time c = 1, second time c = 2 and so on with "time.sleep(86400)" in between functions and have the script running constantly but as you can imagine I'd rather not do that.
def google_sheet_import(var1):
r = 2
c = 3
for w in (var1):
cc_worksheet.update_cell(r, c, w.text)
r = r + 1
google_sheet_import(intraday_price)
All that happens is the script overwrites the data in c because I can't get it to permanently change the value of c after the script runs.

Answer 1

In order to accomplish your needs, you have many possible options to follow:
Store the c value somewhere in your sheet. After inserting a new column, you should increment it, and before inserting a new one you should read it and set it to be c's value.
Store the c variable in a file (see python's open function) and increment it accordingly.
The one that is probably the most sensible and the one I will provide code for. Compute the number of columns you have in your sheet when the python script is executed, and then assign c's value based on that:
def google_sheet_import(var1):
r = 2
c = len(cc_worksheet.get_all_values()[0])
for w in (var1):
cc_worksheet.update_cell(r, c, w.text)
r = r + 1
google_sheet_import(intraday_price)
The only change is in the 3d line. What it does is to check which is the last cell that is populated within the first row (in case your first row is empty or can be empty, I recommend that you set it to another row that you know will be populated).