Message244949
On Python 3.4, input() does not use wrapped sys.stdout. For example, the following script should print "Wrapped stdout" by print() and input() because sys.stdout is replaced with Writer object.
--------
import io
import sys
class Writer:
def __getattr__(self, name):
return getattr(sys.__stdout__, name)
def write(self, data):
if data != '\n':
sys.__stdout__.write('Wrapped stdout\n')
def fileno():
raise OSError()
sys.stdout = Writer()
print('print')
input('input')
------
But the script does not print "Wrapped stdout" as prompt of input(). The script
prints the following.
-----
Wrapped stdout
input
----
Although, when sys.stdin is also wrapped, input() will use sys.stdout for prompt. For example, the following script prints "Wrapped stdout" by print() and input().
----
import io
import sys
class Writer:
def __getattr__(self, name):
return getattr(sys.__stdout__, name)
def write(self, data):
if data != '\n':
sys.__stdout__.write('Wrapped stdout\n')
def fileno():
raise OSError()
class Reader:
def __getattr__(self, name):
return getattr(sys.__stdin__, name)
def read(self, size):
return sys.__stdin__.read(size)
def fileno():
raise OSError()
sys.stdout = Writer()
sys.stdin = Reader()
print('print')
input('input')
----
The script prints the following.
-----
Wrapped stdout
Wrapped stdout
---- |
|
Date |
User |
Action |
Args |
2015-06-07 09:30:52 | Keita Kita | set | recipients:
+ Keita Kita |
2015-06-07 09:30:52 | Keita Kita | set | messageid: <1433669452.09.0.930876867216.issue24402@psf.upfronthosting.co.za> |
2015-06-07 09:30:51 | Keita Kita | link | issue24402 messages |
2015-06-07 09:30:51 | Keita Kita | create | |
|