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Groups > comp.lang.python > #44444

Re: File Read issue by using module binascii

From Peter Otten <__peter__@web.de>
Subject Re: File Read issue by using module binascii
Date 2013-04-27 12:57 +0200
Organization None
References <9b5795ab-baec-4c0a-a3b4-1075cffc8744@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.1122.1367060234.3114.python-list@python.org> (permalink)

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Jimmie He wrote:

> When I run the readbmp on an example.bmp(about 100k),the Shell is become
> to "No respose",when I change f.read() to f.read(1000),it is ok,could
> someone tell me the excat reason for this? Thank you in advance!
> 
> Python Code as below!!
> 
> import binascii
> 
> def read_bmp():
>     f = open('example.bmp','rb')
>     rawdata = f.read()                       #f.read(1000) is ok
>     hexstr = binascii.b2a_hex(rawdata)       #Get an HEX number
>     bsstr = bin (int(hexstr,16))[2:]
>     f.close()
>     print('bin: ',bsstr,type(bsstr))
>     return

What shell are you using? The one provided by Idle?

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Thread

File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-26 20:57 -0700
  Re: File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-26 21:22 -0700
    Re: File Read issue by using module binascii Fábio Santos <fabiosantosart@gmail.com> - 2013-04-27 10:56 +0100
      Re: File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-27 03:42 -0700
  Re: File Read issue by using module binascii Peter Otten <__peter__@web.de> - 2013-04-27 12:57 +0200
    Re: File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-27 04:23 -0700
      Re: File Read issue by using module binascii Fábio Santos <fabiosantosart@gmail.com> - 2013-04-27 12:40 +0100
      Re: File Read issue by using module binascii Peter Otten <__peter__@web.de> - 2013-04-27 14:01 +0200
  Re: File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-27 05:46 -0700
  Re: File Read issue by using module binascii Tim Roberts <timr@probo.com> - 2013-04-27 21:34 -0700
    Re: File Read issue by using module binascii Peter Otten <__peter__@web.de> - 2013-04-28 09:42 +0200
    Re: File Read issue by using module binascii jt@toerring.de (Jens Thoms Toerring) - 2013-04-28 12:04 +0000
      Re: File Read issue by using module binascii Jimmie He <jimmie.he@gmail.com> - 2013-04-28 06:32 -0700

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