How can I find the dictionary with value user7 then update it’s match_sum eg add 3 to the existing 4. I have this, and am not sure if its the best practice to do it. Answer You can also use next(): prints: Note that if default (second argument) is not specified while calling next(), it would raise StopI…
Tag: dictionary
How to get sorted list inside a dictionary with json.dumps()
I have the following problem: having a python dictionary like the following: I would like to obtain an ordered json object such as: At the moment I use the following: But the two list inside my object are not sorted, and I get: probably because the custom JSONEncoder skips a type that already knows how to man…
Convert Django Model object to dict with all of the fields intact
How does one convert a django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False. Let me elaborate. Let’s say I have a django model like the following: In the terminal, I have done the following: I want to convert this to the following diction…
Counting word frequency and making a dictionary from it
I want to take every word from a text file, and count the word frequency in a dictionary. Example: ‘this is the textfile, and it is used to take words and count’ I am not that far, but I just can’t see how to complete it. My code so far: Answer If you don’t want to use collections.Coun…
Sort dictionary by the INT value of the value
There are many posts here about sorting dictionaries in Python so I was careful to read them and hope this is not a duplicate: I’m using a dictionary to hold words as keys and the occurrence of the word as value. This leads to a dictionary that could be like: I want to sort them by occurrence (the ̵…
query from postgresql using python as dictionary
I’m using Python 2.7 and postgresql 9.1. Trying to get dictionary from query, I’ve tried the code as described here: http://wiki.postgresql.org/wiki/Using_psycopg2_with_PostgreSQL It is printing the next answer: printing the item itself, show me that it is list. The excepted answer was dictionary.…
find max , min of values in multidimensional dict
I want to find 1. key with max Load_1min value , 2. key with min Load_1min value , 3. avg value of all the load_min keys for stats. Last one is simple – But 1st two are tough. I tried max function but failed. Answer Use the key argument to min and max: In addition to iterating over the keys,
how to make each key-value of a dictionary print on a new line?
If I have a given dictionary like this: how do I make each key-value print on a new line? well its long but here is the code I’m using to get this dictionary. I pretty much added each key-value to the dictionary. So i figured out the shortest word and then I added that to the dictionary. I noticed it
Intersecting two dictionaries
I am working on a search program over an inverted index. The index itself is a dictionary whose keys are terms and whose values are themselves dictionaries of short documents, with ID numbers as keys and their text content as values. To perform an ‘AND’ search for two terms, I thus need to interse…
What does the == operator actually do on a Python dictionary?
Consider: According to the python doc, you can indeed use the == operator on dictionaries. What is actually happening here? Is Python recursively checking each element of the dictionaries to ensure equality? Is it making sure the keys are identically matched, and the values are also identically matched? Is th…