Print Hello World Python Syntax Error
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Python Print Invalid Syntax Error
just like you, helping each other. Join them; it only takes a minute: Sign up Python print statement “Syntax Error: invalid syntax” [duplicate] up vote 41 down vote favorite 7 This question already has an answer here: Syntax error on print with Python 3 [duplicate] 11 answers Why is Python giving me a syntax error at print *3 output in python the simple print statement on line 9? import hashlib, sys m = hashlib.md5() hash = "" hash_file = raw_input("What is the file name in which the hash resides? ") wordlist = raw_input("What is your wordlist? (Enter the file name) ") try: hashdocument = open(hash_file,"r") except IOError: print "Invalid file." # Syntax error: invalid syntax raw_input() sys.exit() else: hash = hashdocument.readline() hash = hash.replace("\n","") The version of Python is: Python 3.2.2 (default, Sep 4 2011, 09:07:29) [MSC v.1500 64 bit (AMD64)] on win 32 python python-3.x syntax syntax-error share|improve this question edited Jul 4 at 16:17 u8y7541 8819 asked Sep 28 '11 at 14:02 JohnnyFromBF 1,77062236 marked as duplicate by J.F. Sebastianpython Users with the python badge can single-handedly close python questions as duplicates and reopen them as needed. Oct 13 '14 at 17:28 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. add a comment| 2 Answers 2
delarsen5 over 2 years ago Print Syntax Good Afternoon, I've started to program the challenges alongside the Codecademy lessons in Python (v3.3.3), and as a result of copy/pasting the various challenges, I noticed a syntax issue with python 3 print format print. In Codecademy Editor: print "Hello World" Returns successfully without error. In Python: print "Hello python 3 print variable World" Returns a syntax error. It wants parentheses around the item to be printed. print("Hello World") Returns successfully. I may have missed syntaxerror invalid syntax python the reasoning for this in an earlier lesson, but any input would be appreciated. Thanks. 3 votes permalink Originally, print was a Python command, and not a function. The output did not need to be enclosed in http://stackoverflow.com/questions/7584489/python-print-statement-syntax-error-invalid-syntax parentheses. In Python 3.x, print is a built-in function, and no longer a command. The output, consisting of 0 or more arguments, needs to be enclosed in parentheses. In Python 2.7, which Codecademy uses, print exists as a command in order to be compatible with older versions on Python, and is available as a built-in function, for compatibility with newer versions. So, you can get print to work with or without parentheses. (Edit: see additional https://www.codecademy.com/en/forum_questions/52f295c8631fe9ccd000079b discussion below) 10044 points Submitted by Glenn Richard over 2 years ago 2 Comments delarsen5 over 2 years ago Awesome, thanks for the explanation! vinh vong hoang over 2 years ago Now, in python, we have two version, Python 2. and Python 3, some of my friends said that Python 3 is still not unstable and has many issues, bugs. If I want to master Python programming language, should i need to learn Python 3? Does it have more differences with Python 2? 0 votes permalink It's actually a little more complicated than what I described above. Technically print is a "special syntax statement/grammar construct" in Python 2.x, so in some circumstances you may see differences in behavior between it and the Python 3.x print function. To disable it as a command, and access it as a true function so that it behaves the same as in Python 3.x, use: from __future__ import print_function Without the import, you'll notice that the following statement outputs a tuple: print(1, 2, 3) Here's some interaction in IDLE for Python version 2.7.5: >>> print(1, 2, 3) (1, 2, 3) >>> from __future__ import print_function >>> print(1, 2, 3) 1 2 3 >>> See the discussion about print in 2. Built-in Functions — Python v2.7.6 documentation. 10044 points Submitted by Glenn Richard over 2 years ago
Development Programming/Scripting >>> print "hello world" SyntaxError: invalid syntax Welcome! If this is your first visit, be sure to check out the FAQ. You will have to register before you can post in the forums. (Be aware the forums https://forums.opensuse.org/showthread.php/439094-gt-gt-gt-print-quot-hello-world-quot-SyntaxError-invalid-syntax do not accept user names with a dash "-") Also, logging in lets you avoid the CAPTCHA verification when searching . Select Articles, Forum, or Blog. Posting in the Forums implies acceptance of the Terms and http://www.cs.bu.edu/courses/cs108/guides/debug.html Conditions. Results 1 to 6 of 6 Thread: >>> print "hello world" SyntaxError: invalid syntax Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 20-May-2010,13:21 #1 syntax error nexusxox View Profile View Forum Posts View Blog Entries View Articles Newcomer Join Date May 2010 Posts 1 >>> print "hello world" SyntaxError: invalid syntax >>> print "hello world" SyntaxError: invalid syntax what is wrong with this statment using Python 3.2.1 Just learning python and already a error is it because its the later version and is there a cmd to bring up help when writing simple statments 20-May-2010,14:38 #2 LittleRedRooster View Profile python 3 print View Forum Posts View Blog Entries View Articles Busy Penguin Join Date Jul 2008 Location Voorhout, Netherlands Posts 268 Re: >>> print "hello world" SyntaxError: invalid syntax On 05/20/10 22:26, nexusxox wrote: > > >>> print "hello world" > SyntaxError: invalid syntax > > what is wrong with this statment using Python 3.2.1 > > Just learning python and already a error is it because its the later > version and is there a cmd to bring up help when writing simple > statments $python3 Python 3.0b3 (r30b3:65927, Sep 17 2008, 17:46:08) [GCC 4.2.1 (SUSE Linux)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> help(print) Help on built-in function print in module builtins: print(...) print(value, ..., sep=' ', end='\n', file=sys.stdout) Prints the values to a stream, or to sys.stdout by default. Optional keyword arguments: file: a file-like object (stream); defaults to the current sys.stdout. sep: string inserted between values, default a space. end: string appended after the last value, default a newline. (END) Theo 21-May-2010,03:24 #3 DenverD View Profile View Forum Posts View Blog Entries View Articles Flux Capacitor Penguin Join Date Jun 2008 Location Earth - Denmark Posts 11,204 Re: >>> print "hello world" SyntaxError: invalid syntax heh! i'm not a programmer and even i can see what s/he did wrong
Some of these are easy to identify and fix, while others will take some more time. This document will be updated with further information and tips during the semester. Syntax Errors Syntax errors can be detected before your program begins to run. These types of errors are usually typing mistakes, but more generally it means that there is some problem with the structure of your program. Syntax Error Syntax errors in Python will pop up a dialog box like the one below. The message in this box is Syntax Error. There was an error in your program: EOL while scanning single-quoted string. EOL stands for End Of Line. This error means that there was an open quote somewhere, but the line ended before a closing quote was found. Another type of syntax error will simply say invalid syntax. An invalid syntax error means that there is a line that python doesn't know what to do with. The last common type of syntax error you will likely encounter has to do with indention. You may see unindent does not match any outer indention level unexpected indent. Examples: print "hello world
a = 3 + 5 7 Solution: When you press OK on the dialog box. Python will attempt to highlight the offending line in your source code. You should use this location as a hint for where to start looking for your problem. First check the area highlighted. Then check the entire line. Lastly, check the line or lines before the line highlighted. The location marked is where Python noticed there was a problem, so the actual problem could come before! If you get an indention error, you should check that all of your lines of code are properly aligned in the correct columns. You can place you cursor at the start of each line and look at the col: indicator at the bottom right of IDLE to check this. Token Error (missing parenthesis Token errors in Python will pop up a dialog box like the one below. The message in this box is Tabnanny Tokenizing Error. Token Error: EOF in multi-line statement EOF stands for End Of File. This error usually means that there was an open parenthesis somewhere on a line, but not a matching closing parenthesis. Python reached the end of the file whil