Python unexpected EOF in for loop [repl.it]

Question

Note: This question is about a problem with repl.it, not a general problem.

Note: You might consider this as a duplicate, but in fact it isn't.
These do not suit my problem:

Python unexpected EOF while parsing : syntax error

Python unexpected EOF while parsing

Unexpected EOF while parsing in python

Python unexpected EOF while parsing (python2.7)

(Taken from alerady answered questions list, duplicates excluded for compactness)

I've got a problem with for loops in Python (repl.it Python 2 and Python 3 interpreters) in that one-line for loops without a trailing newline raise SyntaxError.

for i in (1,2,3,4,): print i+i+i

Traceback (most recent call last):
  File "python", line 1
    for i in (1,2,3,4,): print i+i+i
                                   ^
SyntaxError: unexpected EOF while parsing

for i in (1,2,3,4,): print i+i+i
# Trailing newline

Another question: How to display a trailing newline , trailing space or unprintable character in SE (without using <pre>)?

Could you provide some more details about your system? I'm on a Mac, Python 2.7.10 and I can't reproduce this issue. I've tried writing this to a file and just using the interpreter, but both run just fine. — Arc676, May 23 '16 at 10:50
Which OS are you using? with Ubuntu and Python2.7 or 3.5 the described problem doesn't exist. — Maximilian Peters, May 23 '16 at 10:50
@Arc676 I've said I'm using it on repl.it so you could give it a try there (Updated recently to Python 2.7.10 'cause of my feedback). — EKons, May 23 '16 at 10:50
I'm not able to reproduce this problem neither in Fedora nor in Windows. — niyasc, May 23 '16 at 10:51
@niyasc As I've replied to others, I'm using repl.it, so you could give it a try there. — EKons, May 23 '16 at 10:52
@Arc676 Maybe yes, maybe no. If I get an answer I will feedback again. — EKons, May 23 '16 at 10:53
That might be some issue with `repl`. Right now I don't have access to it. — niyasc, May 23 '16 at 10:53
@niyasc What is `repl`? (Note: don't use backticks when referencing an interpreter) Also, are you on work? — EKons, May 23 '16 at 10:54
Seems to be repl specific. When using https://repl.it/languages/python3 the error is reproduced, one liner via the command line works or entering the function in python3 on Ubuntu works as well. — Maximilian Peters, May 23 '16 at 11:00
@Ashafix `for i in (1,2,3,4,): print(i+i+i)` reproduces the error on me. (REPL) — EKons, May 23 '16 at 11:04
@Ashafix The header line 2 `[GCC 4.8.2] on linux` tells me it is compiled with GCC on a Linux OS, written in C/C++. — EKons, May 23 '16 at 11:06
There error lies in the line before your for-loop. Possibly a missing `)`. — Daniel, May 23 '16 at 11:10
@Daniel It is a tuple, it can end with a `,`. That is not an error. — EKons, May 23 '16 at 11:14

score 1 · Accepted Answer · answered May 23 '16 at 11:12

It doesn't seem to be a Python problem.

I tried your exact script without a newline on python 2.7 on OS X. It runs successfully. I also tried it on Python 3.5, after adding parens around the argument to print. Still no error.

Looks like a bug specific to repl.it.

Python unexpected EOF in for loop [repl.it]

1 Answers1