Convert Unicode data to int in python

Question

I am getting values passed from url as    user data      if  request args get  title          user data  title    request args get  title   if request args get  limit          user data  limit        request args get  limit     Then using it as  if  limit  in user data       limit   user data  limit   conditions  id       id  1  int limit  print type limit  data   db entry find conditions  limit limit    It prints    lt type  unicode  gt   but i keep getting the type of limit as unicode  which raises an error from query   I am  converting unicode to int but why is it not converting   Please help

User · Accepted Answer

int limit  returns the value converted into an integer  and doesn t change it in place as you call the function  which is what you are expecting it to    Do this instead   limit   int limit    Or when definiting limit   if  limit  in user data       limit   int user data  limit

User · Answer

In python  integers and strings are immutable and are passed by value  You cannot pass a string  or integer  to a function and expect the argument to be modified   So to convert string limit  100  to a number  you need to do  limit   int limit    will return new object  integer  and assign to  limit    If you really want to go around it  you can use a list  Lists are mutable in python  when you pass a list  you pass it s reference  not copy  So you could do   def int in place mutable       mutable 0    int mutable 0    mutable     1000   int in place mutable    now mutable is a list with a single integer   But you should not need it really   maybe sometimes when you work with recursions and need to pass some mutable state

[python] Convert Unicode data to int in python

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