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Q&A Why are commas not needed for modulo string formatting when printing?

Suppose I have two variables that are called animal and age, and print them as a string in the console like so: animal = "giraffe" age = 25 print("A %s can live up to %d years" %(animal,age)) ...

3 answers  ·  posted 1y ago by Bennshinpoes‭  ·  edited 1y ago by Karl Knechtel‭

#4: Post edited by user avatar Karl Knechtel‭ · 2023-08-04T15:36:41Z (over 1 year ago)
remove more noise and streamline prose; remove inaccurate terminology that doesn't help explain the situation
Why are commas not needed for modulo string formatting when printing?
  • I have a question about format specifiers.
  • For example:
  • I have two variables that are called `animal` and `age`, and print them as a string in the console using format specifiers. Why do we place the modulo operator `%(animal,age)` next to the string without a comma? Does Python automatically detect that it needs two parameters to execute?
  • Here is the code example:
  • ```
  • animal = "giraffe"
  • age = 25
  • print("A %s can live up to %d years" %(animal,age))
  • ```
  • Suppose I have two variables that are called `animal` and `age`, and print them as a string in the console like so:
  • ```
  • animal = "giraffe"
  • age = 25
  • print("A %s can live up to %d years" %(animal,age))
  • ```
  • Why shouldn't there be a comma between the string and the `%(animal,age)` part? Does Python automatically detect that it needs two parameters to execute?
#3: Post edited by user avatar Shree‭ · 2023-08-04T04:59:00Z (over 1 year ago)
Remove un necessary noise and format for better readability.
Why are commas not needed for modulo string formatting when printing?
  • I'm still a novice in Python. But have come across a question about format specifiers. For example, if I have two variables that are called `animal` and `age`. And print a string in the console using format specifiers. Why do we place the modulo operator `%(animal,age)` next to the string without a comma? Does Python automatically detect that it needs two parameters to execute?
  • Here is the code example:
  • ```
  • animal = "giraffe"
  • age = 25
  • print("A %s can live up to %d years" %(animal,age))
  • ```
  • I have a question about format specifiers.
  • For example:
  • I have two variables that are called `animal` and `age`, and print them as a string in the console using format specifiers. Why do we place the modulo operator `%(animal,age)` next to the string without a comma? Does Python automatically detect that it needs two parameters to execute?
  • Here is the code example:
  • ```
  • animal = "giraffe"
  • age = 25
  • print("A %s can live up to %d years" %(animal,age))
  • ```
#2: Nominated for promotion by user avatar Alexei‭ · 2023-03-01T08:50:37Z (over 1 year ago)
#1: Initial revision by user avatar Bennshinpoes‭ · 2023-02-27T14:58:24Z (over 1 year ago)
Why are commas not needed for modulo string formatting when printing?
I'm still a novice in Python. But have come across a question about format specifiers. For example, if I have two variables that are called `animal` and `age`. And print a string in the console using format specifiers. Why do we place the modulo operator `%(animal,age)` next to the string without a comma? Does Python automatically detect that it needs two parameters to execute?

Here is the code example:

```
animal = "giraffe"
age = 25

print("A %s can live up to %d years" %(animal,age))
```