...
<form action="" method="POST">
{% csrf_token %}
<input type="text">
<input type="submit" name="city">
</form>
...
def home(request):
print(request.POST)
...
<QueryDict: {'csrfmiddlewaretoken': ['DRd1em12YAXIGFY2Fdp26vfqcrgip5VyOvSWJPGIDOEAaT3vb4AM5eAXcLnzUKSO'], 'city': ['Submit']}>
request.POST.get('city')