0

So I have written a procedure to format a list that I have in Python to be written in an HTML form as JavaScript. it looks like this

from django.template.defaultfilters import slugify def js_format(cars): new_cars = [] for car in cars: car = str(slugify(car))+'|'+car new_cars.append(car) return new_cars dodge = ["Avenger","Caliber","Caravan","Challenger","Colt","D150","D250","D350","Dakota","Dart","Daytona","Durango","Durango Hybrid","Dynasty","Grand Caravan","Intrepid","Journey","Magnum","Monaco","Neon","Nitro","Omni","Raider","Ram 1500","Ram 2500","Ram 3500","Ram 50","Ram Van","Ram Wagon","Ramcharger","Shadow","Sprinter","SRT Viper","Spirit","Stealth","Stratus","Viper","W150","W250","W350"]

when I use the procedure on the 'dodge' list...

>>> js_format(dodge) ['avenger|Avenger', 'caliber|Caliber', 'caravan|Caravan', 'challenger|Challenger', 'colt|Colt', 'd150|D150', 'd250|D250', 'd350|D350', 'dakota|Dakota', 'dart|Dart', 'daytona|Daytona', 'durango|Durango', 'durango-hybrid|Durango Hybrid', 'dynasty|Dynasty', 'grand-caravan|Grand Caravan', 'intrepid|Intrepid', 'journey|Journey', 'magnum|Magnum', 'monaco|Monaco', 'neon|Neon', 'nitro|Nitro', 'omni|Omni', 'raider|Raider', 'ram-1500|Ram 1500', 'ram-2500|Ram 2500', 'ram-3500|Ram 3500', 'ram-50|Ram 50', 'ram-van|Ram Van', 'ram-wagon|Ram Wagon', 'ramcharger|Ramcharger', 'shadow|Shadow', 'sprinter|Sprinter', 'srt-viper|SRT Viper', 'spirit|Spirit', 'stealth|Stealth', 'stratus|Stratus', 'viper|Viper', 'w150|W150', 'w250|W250', 'w350|W350']

Everything is formatted the way I would like except I need each item in the list to be in double quotes. I don't know how to change the quotation marks in python because python recognizes single quoted and double strings equally. Any help would be appreciated.

Thank you for viewing my question

Improve this question
1
  • Do you need one javascript literal, or do you need a list of javascript literals? In other words, will the output of js_format be assigned to one javascript variable? Commented Nov 30, 2012 at 21:26

3 Answers 3

Reset to default
5

Use json.dumps() to create Javascript literals:

def js_format(cars): new_cars = ['{0!s}|{1}'.format(slugify(car)), car) for car in cars] return json.dumps(new_cars)

This will generate a full JS list with properly quoted strings:

>>> js_format(dodge) '["avenger|Avenger", "caliber|Caliber", "caravan|Caravan", "challenger|Challenger", "colt|Colt", "d150|D150", "d250|D250", "d350|D350", "dakota|Dakota", "dart|Dart", "daytona|Daytona", "durango|Durango", "durango-hybrid|Durango Hybrid", "dynasty|Dynasty", "grand-caravan|Grand Caravan", "intrepid|Intrepid", "journey|Journey", "magnum|Magnum", "monaco|Monaco", "neon|Neon", "nitro|Nitro", "omni|Omni", "raider|Raider", "ram-1500|Ram 1500", "ram-2500|Ram 2500", "ram-3500|Ram 3500", "ram-50|Ram 50", "ram-van|Ram Van", "ram-wagon|Ram Wagon", "ramcharger|Ramcharger", "shadow|Shadow", "sprinter|Sprinter", "srt-viper|SRT Viper", "spirit|Spirit", "stealth|Stealth", "stratus|Stratus", "viper|Viper", "w150|W150", "w250|W250", "w350|W350"]'
Improve this answer
Sign up to request clarification or add additional context in comments.

Comments

2

Inside of your for loop, change your assignment to the following:

car = '"' + str(slugify(car)) + '|' + car + '"'

Alternatively, you could use string formatting:

car = '"{0}|{1}"'.format(str(slugify(car)), car)

It is possible I'm misinterpreting this though, do you want js_format() to return a JSON string? If so, use your current function but import json at the top of the file and change your return statement to return json.dumps(new_cars).

Improve this answer

1 Comment

Format is much better solution then strings concatenation
0

If you need your string to contain double quotes — add them manually:

car = '"%s|%s"' % (slugify(car), ca)
Improve this answer

Comments

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.