CODEWITHSUNDEEP
python
user5238258
user5238258

Reputation:

What syntax error do i have in this class?

I am working on a project that requires me to use str to print out as an answer. When I run this code, the compiler gives syntax error by pointing out to return statement. I would love to get help to fix this problem.

I tried to removing parentheses around the return code.

import random
class Movie:
  def __init__ (self, title, year, drname, cat, length):
    self.title = title
    self.year = year
    self.drname = drname
    self.cat = cat
    self.length = length

  def __str__(self):
     return (self.title + '('self.cat','+ self.year')' +'directed by ' + self.drname + ', length ' + self.length + 'minutes')

#Apollo 13 (Drama, 1995) directed by Ron Howard, length 140 minutes
#It should be printed out as shown above

mv1 = Movie("Apollo 13", 1995, 'Ron Howard', 'Drama', 140)

Upvotes: -1

Views: 85

Answers (4)

Dorian Turba
Dorian Turba

Reputation: 3735

You should format the returned value of __str__ using f-string (PEP498):

f"{self.title}({self.cat},{self.year}) directed by {self.drname}, length {self.length} minutes"

Your code, PEP8 and working:

class Movie:
    def __init__(self, title, year, drname, cat, length):
        self.title = title
        self.year = year
        self.drname = drname
        self.cat = cat
        self.length = length

    def __str__(self):
        return f"{self.title} ({self.cat}, {self.year}) directed by {self.drname}, length {self.length} minutes"


# Apollo 13 (Drama, 1995) directed by Ron Howard, length 140 minutes
# It should be printed out as shown above    

mv1 = Movie("Apollo 13", 1995, 'Ron Howard', 'Drama', 140)
print(mv1)

Output: 

Apollo 13 (Drama, 1995) directed by Ron Howard, length 140 minutes

Upvotes: 1

finswimmer
finswimmer

Reputation: 15172

Beside the other answer answers, I recommend using f-strings (introduced with python 3.6) for string formating:

return f"{self.title} ({self.cat}, {self.year}) directed by {self.drname} , length  {self.length} minutes"

Upvotes: 4

Andrew Fan
Andrew Fan

Reputation: 1322

Your code states '('self.cat','+ self.year')' without a +.

Use '(' + self.cat + ',' + self.year + ')' instead.

Also, you may want to consider a space between the category and year. If so, use the following:

'(' + self.cat + ', ' + self.year + ')'

In addition, your year and length need to converted to a string, for example using str(self.length).

Upvotes: 1

Sammit
Sammit

Reputation: 169

just a small syntax error, the plus (+) sign is missing in your return statement. 

 return (self.title + ' (' + self.cat + ', ' + self.year + ') ' + 'directed by ' + self.drname + ', length ' + self.length + ' minutes.')

This should work.

Upvotes: 1

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