Question

我正在尝试从bash脚本运行python脚本，以使用crontab将文件上传到网站。该脚本从终端运行但不能从crontab运行，错误是

"Error: <urlopen error [Errno -2] Name or service not known>"

python脚本是：＃！/ usr / bin / env python

 from ConfigParser import ConfigParser
 from mechanize import Browser, RobustFactory
 import base64
 from os.path import basename 
 import sys
 import os

 print(os.environ)

 if __name__ == "__main__":

 if len(sys.argv) != 2:
    print "Error: 1 argument needed"
    sys.exit(1)

  #DATA FROM CFG FILE
  url = "http:website"
  cfn = "absolute_path/upload.cfg"
  cfg = ConfigParser()

  try:
    cfg.read(cfn)
    usr = cfg.get('Auth', 'user')
    pwd = cfg.get('Auth', 'pass')
  except Exception, e:
    print "Error:", e
    sys.exit(1)

  if not usr or not pwd:
    print "Error: username or password not valid."
    sys.exit(1)
    filename = sys.argv[1]

try:
    br = Browser(factory=RobustFactory())
    br.addheaders.append(('Authorization', 'Basic %s' % base64.encodestring('%s:%s' % (usr, pwd))))

    br.open(url)
    br.select_form(nr=1)
    br.form.add_file(open(filename, 'rb'), 'text/plain', basename(filename))
    br.submit()

    print "File '%s' successfully uploaded" % filename
    sys.exit(0)

    except Exception, e:
    print "Error:", e
    sys.exit(1)

当我尝试在手动运行并使用crontab的情况下在python脚本中“打印（os.environ）”时：

使用crontab：

"{'MAILTO': '/var/mail/envclim', 'LANG': 'en_US.UTF-8', 'SHELL': '/bin/sh',    'XDG_RUNTIME_DIR': '/run/user/1000', 'SHLVL': '2', 'PYTHONPATH': '/usr/lib/python2.7/site-packages:/usr/lib/python2.7/site-packages/', 'OLDPWD': '/home/envclim/upload_sdswas', 'PWD': '/home/envclim/upload_sdswas/upload_scripts', 'LOGNAME': 'envclim', 'USER': 'envclim', 'HOME': '/home/envclim', 'PATH': '/bin:/usr/bin:/usr/local/bin:/usr/local/CDO/bin', 'XDG_SESSION_ID': '6', '_': '/usr/bin/python'}"

但在手动情况下，有代理，如下所示：

{'HTTP_PROXY': 'http://10.51.51.51:80/', 'KDE_IS_PRELINKED': '1', 'ALL_PROXY':  'socks://10.51.51.51:80/', 'NO_PROXY': 'localhost,127.0.0.0/8,::1', 'GJS_DEBUG_OUTPUT': 'stderr', 'http_proxy': 'http://10.51.51.51:80/', 'FTP_PROXY': 'http://10.51.51.51:80/',----------}

在crontab中，我添加：

SHELL=/bin/sh
PATH=/bin:/usr/bin
PYTHONPATH=/usr/lib/python2.7/site-packages
MAILTO=/var/mail/envclim

我正在使用fedora19。我试图禁用代理，但脚本根本不起作用。

请问，任何人都可以解决这个问题吗？

提前致谢泽纳布

Answer 1

非常感谢您的评论，我通过添加以下几行解决了这个问题：

in crontab:

PYTHONPATH=/usr/lib/python2.7/site-packages
HTTP_PROXY=http://10.51.51.51:80/

and in bash file that used to run python script:

export PYTHONPATH=$PYTHONPATH:/usr/lib/python2.7/site-packages/
export LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib:/usr/local/usr/lib

I hope that be useful for someone

my best wishes
 Zeinab

如何使用crontab与代理运行python脚本

1 个答案: