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[英]How do I get a variable in one function to another function in python?
[英]How do I send a variable from one function to another function?
這是一個我希望能夠將一個變量傳遞給另一個變量的函數的示例。
def foo(request):
if request.method == "POST":
unique_id = request.POST.get('per_id','')
baz = get_object_or_404(Name, pk=unique_id)
return render(request, 'details/guy.html', {'baz': baz})
return render(request, 'details/person.html')
def bar(request):
if request.method == "POST":
baz = get_object_or_404(Name, pk=unique_id)
return render(request, 'details/guy.html', {'baz': baz})
return render(request, 'details/guy.html')
問題是這樣的:
local variable 'unique_id' referenced before assignment
那么,如何獲取此變量以將foo(request)函數提供給bar(request)函數?
我知道我可以使用cPickle,但是該網站將獲得的流量幾乎肯定會導致cPickle對象與另一個人混在一起。
會話變量應少用。
def foo(request):
if request.method == "POST":
unique_id = request.POST.get('per_id','')
request.session["unique_id"] = unique_id
baz = get_object_or_404(Name, pk=unique_id)
return render(request, 'details/guy.html', {'baz': baz})
return render(request, 'details/person.html')
def bar(request):
if request.method == "POST":
baz = get_object_or_404(Name, pk=request.session["unique_id"])
del request.session["unique_id"]
return render(request, 'details/guy.html', {'baz': baz})
return render(request, 'details/guy.html')
我不建議,但是也可以使用全局變量。
unique_id = None
def foo(request):
global unique_id
unique_id = 10
def bar(request):
print unique_id
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