Problem with print and output to screen

[Mike]

Hello, I am learning python and i have the next problem and i not understand how fix.
The script is very simple, shows in the terminal the command but, the row is divided in two:
Example:


/opt/zimbra/bin/zmprov ga (e-mail address removed)
|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"
/opt/zimbra/bin/zmprov ga (e-mail address removed)
|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"

And the correct is:
/opt/zimbra/bin/zmprov ga (e-mail address removed) |egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"


The script is:

#!/usr/bin/python
import os

for user in open ("email"):
print '/opt/zimbra/bin/zmprov ga ' + user + '|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress" '



Thanks

 

[Dave Angel]

Hello, I am learning python and i have the next problem and i not understand how fix.
The script is very simple, shows in the terminal the command but, the row is divided in two:
Example:


/opt/zimbra/bin/zmprov ga (e-mail address removed)
|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"
/opt/zimbra/bin/zmprov ga (e-mail address removed)
|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"

And the correct is:
/opt/zimbra/bin/zmprov ga (e-mail address removed) |egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress"


The script is:

#!/usr/bin/python
import os

for user in open ("email"):
print '/opt/zimbra/bin/zmprov ga ' + user + '|egrep "(zimbraPrefMailForwardingAddress:|zimbraPrefMailForwardingAddress" '

I'll assume that 'email' is a file in the current working directory. So
when you open it and iterate through it, each line will be stored in
'user', including its trailing newline.

When you print 'user', you're seeing the newline.

To see for yourself, you could/should have used (just before your print
statement)

print repr(user)

which will show such things as escape sequences.

Anyway, the easiest way to fix it would be to use rstrip() on the line.

for user in open("email"):
user = user.rstrip()
print '/opt/...

That's assuming there's no trailing whitespace that you DO want to preserve.

 

[Joel Goldstick]

When you read the file line by line the end of line character is included
in the result

try user[:-1] instead to strip the return from your printed text

 

[Dave Angel]

When you read the file line by line the end of line character is included
in the result

try user[:-1] instead to strip the return from your printed text

The catch to that is the last line in the file might not have a
newline. In that case, we'd be ignoring the last character of the line.

The .rstrip() method is easy, and for most purposes equivalent. Few
text files have trailing whitespace, but many are missing the final
linefeed.

 

[Joel Goldstick]

When you read the file line by line the end of line character is included
in the result

try user[:-1] instead to strip the return from your printed text

The catch to that is the last line in the file might not have a
newline. In that case, we'd be ignoring the last character of the line.

The .rstrip() method is easy, and for most purposes equivalent. Few
text files have trailing whitespace, but many are missing the final
linefeed.

Point taken. Brain freeze. I forgot about .rstrip. That is the way to go

 

[Mike]

El martes, 11 de diciembre de 2012 20:07:09 UTC-3, Joel Goldstick escribió:

When you read the file line by line the end of line character is included

in the result
try user[:-1] instead to strip the return from your printed text

The catch to that is the last line in the file might not have a

newline.  In that case, we'd be ignoring the last character of the line..



The .rstrip() method is easy, and for most purposes equivalent.  Few

text files have trailing whitespace, but many are missing the final

linefeed.



Point taken.  Brain freeze.  I forgot about .rstrip.  That is the way to go



--



DaveA

Thank you very much, i used "user.rstrip" and the output is correct .

Best Regards!

 

[Mike]

El martes, 11 de diciembre de 2012 20:07:09 UTC-3, Joel Goldstick escribió:

When you read the file line by line the end of line character is included

in the result
try user[:-1] instead to strip the return from your printed text

The catch to that is the last line in the file might not have a

newline.  In that case, we'd be ignoring the last character of the line..



The .rstrip() method is easy, and for most purposes equivalent.  Few

text files have trailing whitespace, but many are missing the final

linefeed.



Point taken.  Brain freeze.  I forgot about .rstrip.  That is the way to go



--



DaveA

Thank you very much, i used "user.rstrip" and the output is correct .

Best Regards!