关于html：form.is_valid（）返回false（django）

form.is_valid() returns false (django)

我对姜戈有点陌生。我试图在上传时将文件发送到另一个服务器，但是如果form.is_valid()总是返回false，就不会让我输入if。

埃多克斯1〔2〕-

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def sent(request):
if request.method == 'POST':
form = SendFileForm(request.POST, request.FILES)
print"form is made"
print form.errors
if form.is_valid():
print"form is valid"
new_song = Song(songfile= request.FILES['songfile'])
new_song.save()
print"new song is made and saved"
l = List()
#cd = form.cleaned_data
#SENDS THE FILE TO SERVER GIVEN PATH
l.all_files(new_song.songfile.path)
return HttpResponseRedirect(reverse('get_files.views.sent'))
else:
print"form is not valid"
else:
form = SendFileForm()

songs = Song.objects.all()
return render_to_response('sent.html', {'songs': songs,'form': form}, context_instance=RequestContext(request))

sent.html模板-

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{% if form.errors %}
<p style="color: red;">
Please correct the error{{ form.errors|pluralize }} below.

</p>
{% endif %}

<form action={% url"sent" %} method="post" enctype="multipart/form-data">
{% csrf_token %}
<p>
{{ form.non_field_errors }}
</p>
<p>
{{ form.songfile.label_tag }} {{ form.songfile.help_text }}
</p>
<p>


{{ form.songfile }}

</p>
<p>
<input type="submit" value="Upload" />
</p>
</form>

号

埃多克斯1〔4〕-

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class SendFileForm(forms.Form):
path = forms.CharField()
songfile = forms.FileField(label='Select a music file',help_text='max. 4 megabytes')

我搜了很多论坛，没能解决这个问题。提前谢谢！