what does type(subprocess.Popen)==<class 'type'> mean?
Steve D'Aprano
steve+python at pearwood.info
Sat Oct 29 11:22:40 EDT 2016
On Sun, 30 Oct 2016 01:55 am, oyster wrote:
> why does not type(subprocess.Popen)==<class 'module'>? Thanks
Because Popen is not a module.
Why do you expect it to be a module?
py> type(int)
<class 'type'>
py> type(float)
<class 'type'>
py> type(str)
<class 'type'>
py> class X(object):
... pass
...
py> type(X)
<class 'type'>
>>>> type(subprocess.Popen)
> <class 'type'>
Popen is a class, also known as a "type".
>>>> import os
>>>> type(os.path)
> <class 'module'>
os.path is a module, just like os.
Inside the os module, you will find code that looks something like this:
if the operating system is Windows:
import ntpath as path
elif the operating system is Unix:
import posixpath as path
else:
import genericpath as path
So os.path is a module.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
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