I have read the documentation of win32print which indicates that GetPrinter is the method which is used to obtain the status of the printer. However, this method returns a complete tuple of data and I’m at a loss at to which element indicates the actual status. Any ideas? Answer If you pass Level=2 into…
no module named fuzzywuzzy
I installed fuzzywuzzy with pip for python3. When I do pip list I see However when I try to import is I get an error. Does anyone have experience with this problem? Answer Are you sure you ran pip3 and not just pip? The latter only installs Python 2 packages.
Parsing XML with Pykml
I have the following xml file I got from QGIS I would like to recursively substitute the value “2” in the field using the information included in the “description” field REALNAME2 in order to have respectively as final output in my kml any suggestions? Answer I recommend you to use the…
Spark SQL Row_number() PartitionBy Sort Desc
I’ve successfully create a row_number() partitionBy by in Spark using Window, but would like to sort this by descending, instead of the default ascending. Here is my working code: That gives me this result: And here I add the desc() to order descending: And get this error: AttributeError: ‘WindowS…
calculate indegree centralization of graph with python networkx
I have a graph and want to calculate its indegree and outdegree centralization. I tried to do this by using python networkx, but there I can only find a method to calculate indegree and outdegree centrality for each node. Is there a way to calculate in- and outdegree centralization of a graph in networkx? Ans…
How does a Django UUIDField generate a UUID in Postgresql?
After reading this blog post https://blog.starkandwayne.com/2015/05/23/uuid-primary-keys-in-postgresql/ I wanted to know more about how Django generates uuid because I am using them as my pk. Well, according to the docs, https://docs.djangoproject.com/es/1.9/ref/models/fields/#uuidfield, Django is relying on …
Iterating over two lists one after another
I have two lists list1 and list2 of numbers, and I want to iterate over them with the same instructions. Like this: But that feels redundant. I know I can write for item in list1 + list2:, but it has a price of running-time. Is there a way do that without loose time? Answer This can be done with itertools.cha…
Python. How to subtract 2 dictionaries
I have 2 dictionaries, A and B. A has 700000 key-value pairs and B has 560000 key-values pairs. All key-value pairs from B are present in A, but some keys in A are duplicates with different values and some have duplicated values but unique keys. I would like to subtract B from A, so I can get the remaining 14…
Python circular imports with inheritance
I have a parent and child class, where a parent’s method returns an instance of the child. Both classes are in separate files classA.py and classB.py. In order to avoid circular imports when I import classA I added the classB import to the end of classA.py (as shown below). Everything worked well and I …
I want my django rest framework serializer to accept input but not add to model
I removed some fields from my model, but I want the serializer to still accept the fields as input. How do I have fields the serializer accepts but doesn’t use? Answer From http://www.django-rest-framework.org/api-guide/serializers/ You can add extra fields to a ModelSerializer or override the default f…