open a file in python

[jayshree]

pk = open('/home/jayshree/my_key.public.pem' , 'rb').read()

Please tell me how to open a file placed in any directory or in same
directory.

After opening this file i want to use the contain (public key ) for
encryption





thanks

 

[Kushal Kumaran]

pk = open('/home/jayshree/my_key.public.pem' , 'rb').read()

Please tell me how to open a file placed in any directory or in same
directory.

After opening this file i want to use the contain (public key ) for
encryption

Does the code you've put into your message not read that file? If you
get an exception, copy-paste in the traceback message you get into
your mail.

 

[jayshree]

Does the code you've put into your message not read that file?  If you
get an exception, copy-paste in the traceback message you get into
your mail.

try:
pk = open('/home/jayshree/my_key.public.pem' , 'rb').read()
except IOError:
print "Error: can\'t find file or read data"
else:
print "reading from file successfully"

 

[Diez B. Roggisch]

try:
pk = open('/home/jayshree/my_key.public.pem' , 'rb').read()
except IOError:
print "Error: can\'t find file or read data"
else:
print "reading from file successfully"

Erm - so it doesn't give an error - which means you have successfully opened
a file, and read it's contents.

So what exactly is your problem?

Diez

 

[Piet van Oostrum]

j> pk = open('/home/jayshree/my_key.public.pem' , 'rb').read()

By the way, a PEM file is a text file, no reason to open it in binary
mode. Just replace the 'rb' with 'r' or leave it out.

 

[jayshree]

Erm - so it doesn't give an error - which means you have successfully opened
a file, and read it's contents.

So what exactly is your problem?

Diez- Hide quoted text -

- Show quoted text -

The Exact Problem is how to use the key containing by .pem file for 'encryption' .
can i print the contents of the .pem file

see http://stackoverflow.com/questions/1176864/problem-with-the-pem-file

 

[Piet van Oostrum]

I have already answered this question in a previous thread. It is not
very helpful if you repeat asking the same or similar questions in
different threads, especially if you don't take notice of the answers
given. I will repeat it once here:

load_pub_key requires a file name, not the contents of the file.
So use rsa = M2Crypto.RSA.load_pub_key('my_key.public.pem') and leave
the open line out.