这里是我的views.py:全局变量不能在Python/Django中工作?
from django.shortcuts import render_to_response
from django.template import RequestContext
import subprocess
globalsource=0
def upload_file(request):
'''This function produces the form which allows user to input session_name, their remote host name, username
and password of the server. User can either save, load or cancel the form. Load will execute couple Linux commands
that will list the files in their remote host and server.'''
if request.method == 'POST':
# session_name = request.POST['session']
url = request.POST['hostname']
username = request.POST['username']
password = request.POST['password']
globalsource = str(username) + "@" + str(url)
command = subprocess.Popen(['rsync', '--list-only', globalsource],
stdout=subprocess.PIPE,
env={'RSYNC_PASSWORD': password}).communicate()[0]
result1 = subprocess.Popen(['ls', '/home/'], stdout=subprocess.PIPE).communicate()[0]
result = ''.join(result1)
return render_to_response('thanks.html', {'res':result, 'res1':command}, context_instance=RequestContext(request))
else:
pass
return render_to_response('form.html', {'form': 'form'}, context_instance=RequestContext(request))
##export PATH=$RSYNC_PASSWORD:/usr/bin/rsync
def sync(request):
"""Sync the files into the server with the progress bar"""
finalresult = subprocess.Popen(['rsync', '-zvr', '--progress', globalsource, '/home/zurelsoft/R'], stdout=subprocess.PIPE).communicate()[0]
return render_to_response('synced.html', {'sync':finalresult}, context_instance=RequestContext(request))
的问题是同步()查看。没有采用upload_file的全局变量值,但在同步视图中采用globalvariable = 0。我究竟做错了什么?
编辑: 试着做这样的:
global globalsource = str(username) + "@" + str(url)
不过,我得到这个错误:
SyntaxError at /upload_file/
invalid syntax (views.py, line 17)
Request Method: GET
Request URL: http://127.0.0.1:8000/upload_file/
Django Version: 1.4.1
Exception Type: SyntaxError
Exception Value:
invalid syntax (views.py, line 17)
为什么负号?请解释!!! – sachitad
查看@ daniel-roseman的回复。你的方法有安全问题,也可能显示不正确的数据与多个请求,并可能无法在多进程环境中工作 – Igor