I can not install perl modules via LWP

i19870503 has asked for the wisdom of the Perl Monks concerning the following question:

I am new in perl, I need Bio::SeqIO to deal with my data recently, so I use cpan, but there is an error that indicating a proxy authentication is needed:

install Bio::SeqIO 
Fetching with LWP:
http://mirrors.163.com/cpan/authors/01mailrc.txt.gz
Proxy authentication needed!
 (Note: to permanently configure username and password run
   o conf proxy_user your_username
   o conf proxy_pass your_password
     )
Username:  
Warning: Term::ReadKey seems not to be available, your password will b
+e echoed to the terminal!
Password:  



Trying with
    /usr/bin/wget -O "/home/zluna/.cpan/sources/authors/01mailrc.txt.g
+z.tmp32465"
to get
    http://mirrors.163.com/cpan/authors/01mailrc.txt.gz
--2014-11-05 20:53:42--  http://mirrors.163.com/cpan/authors/01mailrc.
+txt.gz
Connecting to 117.59.217.228:80... 

connected.
Proxy request sent, awaiting response... Read error (Connection timed 
+out) in headers.
Retrying.

--2014-11-05 21:08:59--  (try: 2)  http://mirrors.163.com/cpan/authors
+/01mailrc.txt.gz
Connecting to 117.59.217.228:80... connected.
Proxy request sent, awaiting response... ^C
    Function system("/usr/bin/wget -O "/home/zluna/.cpan/sources/autho
+rs/01mailrc.txt.gz.tmp32465" "http://mirrors.163.com/cpan/authors/01m
+ailrc.txt.gz" ")
    returned status 0 (wstat 2), left
/home/zluna/.cpan/sources/authors/01mailrc.txt.gz.tmp32465 with size 0
    Warning: no success downloading '/home/zluna/.cpan/sources/authors
+/01mailrc.txt.gz.tmp32465'. Giving up on it.

Proxy authentication needed!
 (Note: to permanently configure username and password run
   o conf proxy_user your_username
   o conf proxy_pass your_password
     )
Username:  ^CCaught SIGINT, trying to continue
^CGot another SIGINT
[download]

After wait for a long time, I have to cancel it. How could I fix the problem?

Comment on I can not install perl modules via LWP Download Code

Replies are listed 'Best First'.
Re: I can not install perl modules via LWP by choroba (Cardinal) on Nov 05, 2014 at 13:32 UTC
Hi i19870503, welcome to the Monastery! Did you specify the username and password? You can use the commands shown in the output (`o conf proxy_...`) to stop the prompt appearing every time you need to download something. لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply] [d/l]
Re^2: I can not install perl modules via LWP by i19870503 (Initiate) on Nov 05, 2014 at 13:55 UTC
Hi choroba, thanks for reply! Here is the `o conf /proxy/` results. `cpan[5]> o conf /proxy/ $CPAN::Config options from /home/zluna/.cpan/CPAN/MyConfig.pm: ftp_proxy [] http_proxy [] no_proxy [localhost,127.0.0.0/8,::1] proxy_pass undef proxy_user [] cpan[7]> i Fetching with LWP: http://mirrors.163.com/cpan/authors/01mailrc.txt.gz LWP failed with code[500] message[read timeout] Proxy authentication needed! (Note: to permanently configure username and password run o conf proxy_user your_username o conf proxy_pass your_password )` [download] In my opinin, I did not set any proxy and I also don't want to use proxy for download modules. But still can not install the modules, however, I can download the modules by "wget" and then put them to the folders.	[reply] [d/l] [select]
Re^3: I can not install perl modules via LWP by choroba (Cardinal) on Nov 05, 2014 at 14:09 UTC
There seems to be a proxy set on your system. wget might be able to access it thanks to environment variables - try `echo $http_proxy $HTTP_PROXY` [download] in your shell. You should get the output as `http://username:password@proxy-url` [download] لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply] [d/l] [select]
Re^4: I can not install perl modules via LWP by i19870503 (Initiate) on Nov 07, 2014 at 03:15 UTC
Re: I can not install perl modules via LWP ( cpanm ) by Anonymous Monk on Nov 06, 2014 at 01:18 UTC
Try using cpanm :)	[reply]
Re: I can not install perl modules via LWP by AlwaysLearn1ng (Initiate) on May 12, 2015 at 09:54 UTC
I also get this on some modules (not all). For example I can run this without proxy prompts: `export -n HTTP_PROXY; perl -MCPAN -e "install Email::MIME"` But this prompts for proxy credentials: `export -n HTTP_PROXY; perl -MCPAN -e "install Test::NoWarnings" LWP failed with code[403] message[Forbidden] Proxy authentication needed!` [download] I think it's a bogus message as Proxy Authentication Required is HTTP/407, not HTTP/403, but maybe CPAN is blocking specific modules at the origin server for some reason?	[reply] [d/l] [select]
Re^2: I can not install perl modules via LWP by Anonymous Monk on May 12, 2015 at 10:59 UTC
but maybe CPAN is blocking specific modules at the origin server for some reason? No :)	[reply]