The new .format() method is meant to replace the old % formatting syntax. The latter has been de-emphasised, (but not officially deprecated yet). The method documentation states as much: This method of string formatting is the new standard in Python 3, and should be preferred to the % formatting described in String Formatting Operations in … Read more
You can do this with str.ljust(width[, fillchar]): Return the string left justified in a string of length width. Padding is done using the specified fillchar (default is a space). The original string is returned if width is less than len(s). >>> ‘hi’.ljust(10) ‘hi ‘
In Python 2 (and Python 3) you can do: number = 1 print(“%02d” % (number,)) Basically % is like printf or sprintf (see docs). For Python 3.+, the same behavior can also be achieved with format: number = 1 print(“{:02d}”.format(number)) For Python 3.6+ the same behavior can be achieved with f-strings: number = 1 print(f”{number:02d}”)
To answer your first question… .format just seems more sophisticated in many ways. An annoying thing about % is also how it can either take a variable or a tuple. You’d think the following would always work: “hi there %s” % name yet, if name happens to be (1, 2, 3), it will throw a … Read more
You need to double the {{ and }}: >>> x = ” {{ Hello }} {0} ” >>> print(x.format(42)) ‘ { Hello } 42 ‘ Here’s the relevant part of the Python documentation for format string syntax: Format strings contain “replacement fields” surrounded by curly braces {}. Anything that is not contained in braces is … Read more
“%” is actually the modulus operator but it can also be used to format strings. Learn more about it here: link