I have noticed that the httpie python tool gives different results in the following two caes:
$ http google.com$ http google.com > out.txt
The file out.txt misses headers that are present in the first case.
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I am a little confused as to what the error is exactly.William Denman– William Denman2013-12-17 12:54:54 +00:00Commented Dec 17, 2013 at 12:54
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2 Answers
Use sys.stdout.isatty to tell whether stdout is a terminal (a "tty") or a file and print different output depending on that, e.g.:
import sys
if sys.stdout.isatty():
print "Hello terminal!"
else:
print "Hello non-terminal!"
Comments
On the manual page of http you can find the following
Output options:
--print WHAT, -p WHAT
String specifying what the output should contain:
'H' request headers 'B' request body 'h' response headers 'b' response body
The default behaviour is 'hb' (i.e., the response headers and body is
printed), if standard output is not redirected. If the output is piped
to another program or to a file, then only the response body is printed by
default.
Which indicates that http intentionally behaves differently whenever the output is redirected. To obtain the same behavior as for not redirected output you can use
`http --print hb google.com > out.txt`
(But also note that pretty-printing behaves differently with redirection.)
1 Comment
Frerich Raabe
Oops, seeing that this answer was accepted, I guess my answer was totally off. I thought the question is about "how to print different results to a screen and to a file" when writing a Python program. :-]