Modifying a date format

[rob101]

Thank you. I tried to incorporate the code you supplied and have it process the file...

You're welcome.

The code I posted is designed to iterate over the list object that is returned by lines = f.readlines(), but you've introduced another for loop, which unpacks said list, which is why if fails.

There are other solutions here which may very well work for you, but if not, I'm sure I could modify my script; indeed, I'm sure you could also do that, if needed.

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To add...

As I had 10 mins spare, I've come up with a possible solution:

def format_date(date):
    for index, item in enumerate(date):
        if index == 0:
            month = item.lstrip("D")
            month = "D" + str(f"{int(month):02d}")
        elif index == 1:
            day = str(f"{int(item):02d}")
        else:
            year = item.rstrip("\n")

    return f"{month}/{day}/{year}"


lines = ['D7', '7', '2005\n']  # a data sample

for line in lines:
    if line[0] == 'D':
        date = format_date(lines)
    continue

print(date)