這裏是我的views.py:全局變量不能在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))
的問題是同步()查看。沒有采用upload_file的全局變量值,但在同步視圖中採用globalvariable = 0。我究竟做錯了什麼?
編輯: 試着做這樣的:
global globalsource = str(username) + "@" + str(url)
不過,我得到這個錯誤:
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)
爲什麼負號?請解釋!!! – sachitad
查看@ daniel-roseman的回覆。你的方法有安全問題,也可能顯示不正確的數據與多個請求,並可能無法在多進程環境中工作 – Igor