[Python-bugs-list] [ python-Bugs-437158 ] null char in string processing

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Bugs item #437158, was opened at 2001-06-28 11:41
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Category: None
>Group: Not a Bug
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Vadim Suvorov (xxx-bad)
Assigned to: Nobody/Anonymous (nobody)
Summary: null char in string processing

Initial Comment:
The following program was excuted with different 
results in several environments:
Windows ME: 
s = 8 <straaaaaa>
< straaaaaa >

Windows NT: expected result
s = 8 <str     >
< str      >

Sun Solaris 8:
s = 8 <str>
< str >

In all cases, the length and contents of file "s" was 
as expected, equal to s string.

s = "str\0\0\0\0\0"
print "s = ", len(s),  "<" + s + ">"
print "<", str(s), ">"

f = open("s", "wb")
f.write(s)
f.close()


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>Comment By: Tim Peters (tim_one)
Date: 2001-06-29 11:24

Message:
Logged In: YES 
user_id=31435

Thanks for following up!  In much of the world, the only 
characters "safe" to display (or print) across all 
available platforms are those characters c such that

32 <= ord(c) < 128

That is, the printable ASCII characters.  Go beyond that 
and it depends on all sorts of platform stuff, like the 
display drivers, the terminals, available fonts, locale 
settings, etc.


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Comment By: Vadim Suvorov (xxx-bad)
Date: 2001-06-29 07:47

Message:
Logged In: YES 
user_id=85081

I was able to confirm your opinion. This is the effect of 
terminal - I was thrown off by "a" as substitution for 
unprintable character. Sorry, and thank you

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Comment By: Tim Peters (tim_one)
Date: 2001-06-28 12:57

Message:
Logged In: YES 
user_id=31435

What does this have to do with Python?  That is, Python has 
no control over how your terminal displays non-printable 
characters.

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Comment By: Vadim Suvorov (xxx-bad)
Date: 2001-06-28 11:56

Message:
Logged In: YES 
user_id=85081

Oops. Forgot: Python v. 2.1

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