How to return a dictionary Python

Question

I have a  txt file with the following lines in it   23 Pablo SanJose 45 Rose Makati   I have this program   file   open  C  Users renato Desktop HTML Files myfile2 txt    def query id       for line in file          table               table  ID   table  name   table  city      line split              if id    int table  ID                  file close                return table         else               file close                return     id   int input  Enter the ID of the user      table2   query id  print  ID    table2  ID    print  Name    table2  name    print  City    table2  city      So what s happening  according to me  is   File is opened A hash called table is created and each line of the file is split into 3 keys values  If the id entered by the user matches the value of the key ID  then close the file and return the whole hash   Then  I m assigning table2 the values on the table hash and I m trying to print the values in it   When I run this  I get the following      Traceback  most recent call last      File  C  Users renato Desktop HTML Files Python hash2 py   line 17  in  lt module gt      print  ID    table2  ID        KeyError   ID    It seems like it s not recognizing the key ID on the table2 var  I also tried declaring table2 as a hash by putting table2      before the function is executed  but it continues to display the error message   How do I assign the values of a returned hash to a variable  so that I can print them using their keys

User · Answer

def prepare table row row       lst    i text for i in row if i    u  n       return dict rank   int lst 0                    grade   str lst 1                    channel str lst 2                     videos   float lst 3  replace                             subscribers   float lst 4  replace                            views   float lst 5  replace

User · Answer

I followed approach as shown in code below to return a dictionary  Created a class and declared dictionary as global and created a function to add value corresponding to some keys in dictionary     Note have used Python 2 7 so some minor modification might be required for Python 3   class a      global d     d        def get config self x           if x   GENESYS               d  host      host name              d  port      15222          return d   Calling get config method using class instance in a separate python file   from constant import a class b      a   get config  GENESYS       print a   get config  GENESYS   get  host       print a   get config  GENESYS   get  port

User · Answer

def query id       for line in file          table   line split  quot   quot           if id    int table 0                 yield table            id   int input  quot Enter the ID of the user   quot    for id   name  city in query id     print  quot ID   quot    id     print  quot Name   quot    name    print  quot City   quot    city  file close    Using yield

User · Answer

What s going on is that you re returning right after the first line of the file doesn t match the id you re looking for  You have to do this   def query id       for line in file          table               table  ID   table  name   table  city      line split              if id    int table  ID                  file close                return table       ID not found  close file and return empty dict     file close       return

[python] How to return a dictionary | Python

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