Python struct.pack() not working in script

Question

I have some problems here when I try to use struct.pack from a script. Everything is fine in the interpreter:

>>> import struct  
>>> k=2  
>>> struct.pack(">b", k)  
'\x02'

Now when I do the same from a script I have problems:

k=2  
p =  struct.pack(">b", k)  
print "p is %s"%(p,)  
return p

Result:

p is

what am I doing wrong? I really don't understand this and would be glad if somebody could help me. Thanks

Ignacio Vazquez-Abrams · Accepted Answer · 2011-04-26 10:03:52Z

8

Everything is fine. The character is unprintable.

print "p is %r" % (p,)

answered Apr 26, 2011 at 10:03

Ignacio Vazquez-Abrams

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Comments

Senthil Kumaran · Accepted Answer · 2011-04-26 10:06:58Z

0

In the interpreter it is displaying the repr of that char and it is interpreting it when you do a print. So you can just do repr(p) in your script if you want to have same result as the interpreter.

answered Apr 26, 2011 at 10:06

Senthil Kumaran

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Comments

vartec · Accepted Answer · 2011-04-26 10:07:18Z

0

You are actually printing character '\x02' which is not visible. Try printing it's representation instead.

print "p is %r"%(p,)

answered Apr 26, 2011 at 10:07

vartec

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