Newbie disclaimer: I am new to Python and just started using IDLE to play around with Python.
My problem is the interpreter does not recognize strings, whether enclosed in ¨¨ or ´´.
I configured IDLE to use UTF-8. but it does not seem to be an IDLE issue. What I tried is to test this string in the interpreter directly. It does not work.
print ¨Money¨
to the interpereter returns
File "<stdin>", line 1
print ¨Money¨
^ SyntaxError: invalid syntax
Can someone help me with this? I am using a new laptop running fedora15 with the international keyboard layout and python version is 2.7.1.
You need to use "" or '', not ¨¨, ´´ or any other fancy characters.
Just switch your keyboard setting between normal US English for coding, and US English International for texting, that worked for me.
Related
I think this is perfectly valid.
if False:
print(1)
print(2)
However, it gives me an invalid syntax error in Python REPL.
Why is it?
On Python 3.6.5 (x64), Windows 10 RS4
As pointed out by user2357112, this behaviour is explained in https://docs.python.org/3/tutorial/introduction.html#first-steps-towards-programming,
The body of the loop is indented: indentation is Python’s way of grouping statements. At the interactive prompt, you have to type a tab or space(s) for each indented line. In practice you will prepare more complicated input for Python with a text editor; all decent text editors have an auto-indent facility. When a compound statement is entered interactively, it must be followed by a blank line to indicate completion (since the parser cannot guess when you have typed the last line). Note that each line within a basic block must be indented by the same amount.
The REPL can only read and evaluate one statement at a time.
You entered two statements at once.
This is possible because the REPL cannot decide if the third line is going to continue the if construction or start a whole new statement. It has to assume the former to allow indented blocks at all.
You have to make it clear to the REPL that your previous statement is finished before starting a new one.
Wrong version seems to be the most possible since, in the error it shows print. In the older python versions, print was used as print"ok", I see your operating system is windows so you can just directly download python3 from https://python.org/ have a nice day!
I'm using VSCode Version: 1.46.1 on Mac OS Catalina. I'm using the built-in Python interactive terminal Python 3.7.4 Whenever I print strings, it shows up with unicode, making it difficult to read, like so:
\\u201cI like what we have.\\u201d It is quiet and there is somebody else in the room. I tell my dog that I need to go and he says, \\u201cjust alright.\\u201d ~~I am hungry.\\n\\n
I have tried every flavor of un-escaping escaped characters. See here:
Unescaping escaped characters in a string using Python 3.2
And
Using unicode character u201c
But to no avail. I think the problem lies in the encoding options built into VSCode itself, but I'm not sure how to modify that.
Maybe this page could provide some information for you.
"\u201c" and "\u201d" means “ and ”, but they will not work, they should be "\u201c" and "\u201d".
I think this is perfectly valid.
if False:
print(1)
print(2)
However, it gives me an invalid syntax error in Python REPL.
Why is it?
On Python 3.6.5 (x64), Windows 10 RS4
As pointed out by user2357112, this behaviour is explained in https://docs.python.org/3/tutorial/introduction.html#first-steps-towards-programming,
The body of the loop is indented: indentation is Python’s way of grouping statements. At the interactive prompt, you have to type a tab or space(s) for each indented line. In practice you will prepare more complicated input for Python with a text editor; all decent text editors have an auto-indent facility. When a compound statement is entered interactively, it must be followed by a blank line to indicate completion (since the parser cannot guess when you have typed the last line). Note that each line within a basic block must be indented by the same amount.
The REPL can only read and evaluate one statement at a time.
You entered two statements at once.
This is possible because the REPL cannot decide if the third line is going to continue the if construction or start a whole new statement. It has to assume the former to allow indented blocks at all.
You have to make it clear to the REPL that your previous statement is finished before starting a new one.
Wrong version seems to be the most possible since, in the error it shows print. In the older python versions, print was used as print"ok", I see your operating system is windows so you can just directly download python3 from https://python.org/ have a nice day!
Im using the terminal on my mac to run some python and when i try to print a string i get an invalid syntax error.
Michaels-MBP:~ mike$ python text.py
File "text.py", line 2
print(‘hi’)
^
SyntaxError: invalid syntax
I've tried it with single quotes and with and without parentheses but i keep getting that error, what is wrong.
Should be:
print('hi')
You have proper British quotes ‘foo’. Those are the right symbols to use when writing human-readable texts, but Python wants actual single quotes '.
Your editor probably has some kind of smart-quotes feature enabled, it is wise to turn this off when writing code (e.g. configure your editor to detect extensions like .py).
This question already has answers here:
Syntax error on print with Python 3 [duplicate]
(3 answers)
Closed 9 years ago.
Note: This was not answered by the question that was marked as the original. This is more than just a Python v2 vs v3 problem, which I explain in the comments below.
Original post:
I am trying to learn Python at work, so I am currently using Portable Python 3.2.1.1 (which will henceforth be referred to as PP). (I mention this because this problem doesn't happen at home when I use my Mac and regular Python.)
I am working through exercise 16 of Learning Python the Hard Way (http://learnpythonthehardway.org/book/ex16.html). I've heard this isn't the best learning tool, but I am a complete programming n00b and I'm a hands-on learner. If you have any better suggestions, I'm open!
The first few lines of the exercise read:
from sys import argv
script, filename = argv
print "We're going to erase %r." % filename
print "If you don't want that, hit CTRL-C (^C)."
My script is titled Ex16.py and the file I am using is Python.txt, and both of these are in the same folder as the PP .exes. I don't think that's necessary, but hoped maybe it would fix the problem... negative. When I press "Run" in PP, it doesn't work because argv requires you provide an argument when you start the script: python Ex16.py Python.txt
When I launch Python.exe (which, in PP is Portable-Python.exe), I get the standard Python prompt, >>>, but whatever I enter I get the same error message:
File "<stdin>", line 1
with whatever I've just tried repeated back to me with the marker to
indicate where the problem is. (has not been helpful so far)
SyntaxError: invalid syntax
I have tried typing the following at the >>> prompt:
python Ex16.py Python.txt,,
Ex16.py Python.txt,,
"%PATH&\Ex16.py" "%PATH%\Python.txt" (with the actual filepaths),,
print 'hello world'
I just keep getting the same invalid syntax error over and over. Even a basic print command returned an invalid syntax error. The only one that triggered a different error was the one where I tried whole filepaths. That one returned:
File "<stdin>", line 1
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in
position 2-3: truncated \UXXXXXXXX escape
Yes, I have Googled the crap outta both errors. I read that sometimes the problem is not doubling the backspaces, so I tried that, too, putting two \ where just one had been before in both filepaths. I even tried putting — # -*- coding: utf-8 -*- at the beginning of the script thinking maybe there was some unicode error. That, with the full filepaths, resulted in the same unicode error mentioned earlier.
Yes, I have checked that my code is matching that in the exercise.
Yes, this works at home on non-PP.
All this leads me to believe that the problem is probably in the way I'm trying to run the scripts in PP (but why won't print work?), but I haven't a clue what I'm doing wrong.
Thanks!
print is a function in Python 3:
print('my string with content and the like')
It is no longer supported as being a 'statement'. You might want to check out a list of things that changed from python2.x to python3.x (there's a number of incompatibilities). Also, you might be better off finding a tutorial using Python3.
You have to type:
Portable-Python.exe Ex16.py Python.txt
at your command prompt. To get a command prompt, press WindowsKey-R, then type "cmd" and press enter. You should now be looking at something like c:\>. Navigate to your portable python installation by using the cd command.