float.is_integer() Return True if the float instance is finite with integral value, and False otherwise: >>> (-2.0).is_integer() True >>> (3.2).is_integer() False

fnmatch.fnmatch(filename, pattern) Test whether the filename string matches the pattern string, returning True or False. If the operating system is case-insensitive, then both parameters will be normalized to all lower- or upper-case before the comparison is performed. fnmatchcase() can be used to perform a case-sensitive comparison, regardless of whether that’s standard for the operating system. This example will print all file names in the current directory with the extension .txt: import

exception FloatingPointError Raised when a floating point operation fails. This exception is always defined, but can only be raised when Python is configured with the --with-fpectl option, or the WANT_SIGFPE_HANDLER symbol is defined in the pyconfig.h file.

fnmatch.filter(names, pattern) Return the subset of the list of names that match pattern. It is the same as [n for n in names if fnmatch(n, pattern)], but implemented more efficiently.

classmethod float.fromhex(s) Class method to return the float represented by a hexadecimal string s. The string s may have leading and trailing whitespace.

float.hex() Return a representation of a floating-point number as a hexadecimal string. For finite floating-point numbers, this representation will always include a leading 0x and a trailing p and exponent.

filter(function, iterable) Construct an iterator from those elements of iterable for which function returns true. iterable may be either a sequence, a container which supports iteration, or an iterator. If function is None, the identity function is assumed, that is, all elements of iterable that are false are removed. Note that filter(function, iterable) is equivalent to the generator expression (item for item in iterable if function(item)) if function is not None and (item for item in itera

class float([x]) Return a floating point number constructed from a number or string x. If the argument is a string, it should contain a decimal number, optionally preceded by a sign, and optionally embedded in whitespace. The optional sign may be '+' or '-'; a '+' sign has no effect on the value produced. The argument may also be a string representing a NaN (not-a-number), or a positive or negative infinity. More precisely, the input must conform to the following grammar after leading and tr

float.as_integer_ratio() Return a pair of integers whose ratio is exactly equal to the original float and with a positive denominator. Raises OverflowError on infinities and a ValueError on NaNs.

fileinput.lineno() Return the cumulative line number of the line that has just been read. Before the first line has been read, returns 0. After the last line of the last file has been read, returns the line number of that line.