On 2017-08-24 20:24, Stefan Ram wrote:
This is a transcript:
from math import floor
floor( "2.3" )
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: must be real number, not str
help(floor)
Help on built-in function floor in module math:
floor(...)
floor(x)
Return the floor of x as an Integral.
This is the largest integer <= x.
Is the output of »help(floor)« supposed to be a kind of
normative documentation, i.e., /the/ authoritative
documentation of »floor«?
Is there any hint in the documentation about the type
expected of arguments in a call?
Is a parameter name »x« (as used above) described
somewhere to express the requirement of a real number?
It seems, »real« means »int or float«. Is this meaning
of »real« documented somewhere?
Thanks in advance!
As the module is called "math", it's not surprising that "floor" expects
a number and rejects a string.
There's also a "cmath" module, which handles complex numbers.
"real" can be int, float or Decimal, but not complex.
--
https://mail.python.org/mailman/listinfo/python-list
