Newb question about %02d %04d - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: Newb question about %02d %04d (/thread-13450.html) |
RE: Newb question about %02d %04d - snippsat - Mar-05-2019 (Mar-05-2019, 09:44 PM)bennylava Wrote: Particularly the part where they had me do str(row_count). What is the purpose of that?It convert integer to string,it's used because the string is bad build up. We use string formatting to avoid + str() and many " in one string.In 3.6 did we get f-string ,that takes over for format() .It looks a lot better like this. def create_spreadsheet(title, row_count=1000): print(f"Creating a spreadsheet called {title} with {row_count} rows") create_spreadsheet(title = "Applications", row_count=10)
(Mar-05-2019, 09:44 PM)bennylava Wrote: Can someone go into when you can use commas, and when you can't?Can look at is a separator between values/elements that used is many different cases. In function over it separate function parameter title and row_count=1000 With two values it will separate automatic into a tuple. >>> 1, 2 (1, 2) >>> 'hello', 'world', 99 ('hello', 'world', 99)In a list a natural way to separate elements. >>> lst = ['hello', 'car', 999] >>> lst ['hello', 'car', 999] >>> lst[2] 999 |