Re: [Tutor] Issues In Terminal
Marc Tompkins marc.tompk...@gmail.com wrote
The parentheses are optional in 2.6, mandatory in 3. In 2.6, print
and
print() are alternate ways to invoke the print statement
Not strictly true. They often give the same results but not always,
see a recent thread on this. In particular
print ('a','b')
is quite different to
print 'a','b'
But that shouldn't be an issue for 'hello world'
Alan G.
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Re: [Tutor] Issues In Terminal
On Tue, Sep 28, 2010 at 5:02 AM, Alan Gauld alan.ga...@btinternet.comwrote:
Marc Tompkins marc.tompk...@gmail.com wrote
The parentheses are optional in 2.6, mandatory in 3. In 2.6, print and
print() are alternate ways to invoke the print statement
Not strictly true. They often give the same results but not always,
see a recent thread on this. In particular
print ('a','b')
is quite different to
print 'a','b'
But that shouldn't be an issue for 'hello world'
And of course if you're on 2.6+ you can always add
from __future__ import print_function
and that will help prepare you for the eventual migration to 3+
-Wayne
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[Tutor] Issues In Terminal
Hello all, Totally new to this stuff and community so I very much appreciate the help and apologize in advance for asking what might be a stupid question... Oh, and I'm new to the lingo too!! I'm having issues running Python in Terminal. When I run code through the interpreter I get: Python 2.6.5 (r236:73959, Mar 24 2010, 01:32:55) [GCC 4.0.1 (Apple Inc. build 5943)] on darwin Type help, copyright, credits or license for more information. print(Hello World) Hello World Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' I'm using a Mac OS X 10.5.8. I had previously downloaded Python 2.6.5 AND 3.1 and had them both on this computer simultaneously but was having trouble with 3.1 crashing. I have since put both in the trash but obviously still have 2.6.5 on my system, I assume that was the version pre-installed on this Mac. Any guidance at all would be much appreciated-- I'm totally lost and have spent hours trying to figure this out. bdb ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sun, Sep 26, 2010 at 5:55 PM, Bill DeBroglie bill.debrog...@gmail.com wrote: Hello all, Totally new to this stuff and community so I very much appreciate the help and apologize in advance for asking what might be a stupid question... Oh, and I'm new to the lingo too!! I'm having issues running Python in Terminal. When I run code through the interpreter I get: Python 2.6.5 (r236:73959, Mar 24 2010, 01:32:55) [GCC 4.0.1 (Apple Inc. build 5943)] on darwin Type help, copyright, credits or license for more information. print(Hello World) Hello World Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' Pretty sure it's the parentheses, but I'm not an expert. In python 3 you use print(), in 2.6 you either use import from __futur__ or print string here. I'm using a Mac OS X 10.5.8. I had previously downloaded Python 2.6.5 AND 3.1 and had them both on this computer simultaneously but was having trouble with 3.1 crashing. I have since put both in the trash but obviously still have 2.6.5 on my system, I assume that was the version pre-installed on this Mac. Any guidance at all would be much appreciated-- I'm totally lost and have spent hours trying to figure this out. bdb ___ Tutor maillist - tu...@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sun, Sep 26, 2010 at 6:03 PM, David Hutto smokefl...@gmail.com wrote: On Sun, Sep 26, 2010 at 5:55 PM, Bill DeBroglie bill.debrog...@gmail.com wrote: Hello all, Totally new to this stuff and community so I very much appreciate the help and apologize in advance for asking what might be a stupid question... Oh, and I'm new to the lingo too!! I'm having issues running Python in Terminal. When I run code through the interpreter I get: Python 2.6.5 (r236:73959, Mar 24 2010, 01:32:55) [GCC 4.0.1 (Apple Inc. build 5943)] on darwin Type help, copyright, credits or license for more information. print(Hello World) Hello World Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' Pretty sure it's the parentheses, but I'm not an expert. In python 3 you use print(), in 2.6 you either use import from __futur__ or print string here. I mean __future__ . I'm using a Mac OS X 10.5.8. I had previously downloaded Python 2.6.5 AND 3.1 and had them both on this computer simultaneously but was having trouble with 3.1 crashing. I have since put both in the trash but obviously still have 2.6.5 on my system, I assume that was the version pre-installed on this Mac. Any guidance at all would be much appreciated-- I'm totally lost and have spent hours trying to figure this out. bdb ___ Tutor maillist - tu...@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sun, Sep 26, 2010 at 2:55 PM, Bill DeBroglie bill.debrog...@gmail.comwrote: Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' I'm using a Mac OS X 10.5.8. I had previously downloaded Python 2.6.5 AND 3.1 and had them both on this computer simultaneously but was having trouble with 3.1 crashing. I have since put both in the trash but obviously still have 2.6.5 on my system, I assume that was the version pre-installed on this Mac. I think that's a shell issue, not specifically a Python issue. You need to include a line at the top of the script to tell the OS how to find the Python interpreter. Try adding this line at the beginning: #!/usr/bin/env python Your default Python install probably is NOT installed at /usr/bin/python, but there should be a symbolic link there that points to the actual location. If not, you'll need to adjust things a bit. -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sun, Sep 26, 2010 at 3:04 PM, David Hutto smokefl...@gmail.com wrote: Pretty sure it's the parentheses, but I'm not an expert. In python 3 you use print(), in 2.6 you either use import from __futur__ or print string here. I mean __future__ . The parentheses are optional in 2.6, mandatory in 3. In 2.6, print and print() are alternate ways to invoke the print statement; in 3 the print statement has been replaced by the print() function. If you want to use the function instead of the statement, you must do this: from __future__ import print_function but I'm pretty sure that's not the OP's issue. -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Mon, 27 Sep 2010 07:55:40 am Bill DeBroglie wrote: [...] Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: How do you call the program? At the shell prompt, if you call: python name_of_my_program.py does it work? Looking at the error you get, it looks like OS-X is treating the program as a shell script, not a Python script: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' That's not a Python error message, so it's probably a shell error. You need to teach the shell how to treat it, either by explicitly calling python, as above, or by inserting a hash-bang line at the very top of the script: #!/usr/bin/env python should do it. -- Steven D'Aprano ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sep 26, 2010, at 6:06 PM, Marc Tompkins wrote: On Sun, Sep 26, 2010 at 2:55 PM, Bill DeBroglie bill.debrog...@gmail.com wrote: Which is great, but when I try and run the same code in the Terminal by calling a program I've written (print(hello world) again) I get the following: matthews-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 4: syntax error near unexpected token `Hello World' ./chapter_2.py: line 4: `print(Hello World)' I'm using a Mac OS X 10.5.8. I had previously downloaded Python 2.6.5 AND 3.1 and had them both on this computer simultaneously but was having trouble with 3.1 crashing. I have since put both in the trash but obviously still have 2.6.5 on my system, I assume that was the version pre-installed on this Mac. I think that's a shell issue, not specifically a Python issue. You need to include a line at the top of the script to tell the OS how to find the Python interpreter. Try adding this line at the beginning: #!/usr/bin/env python Is this what you mean? matthew-parrillas-macbook:Dawson_Book matthewparrilla$ #!/usr/bin/env python matthew-parrillas-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 1: syntax error near unexpected token `Hello World' ./chapter_2.py: line 1: `print(Hello World)' If so, obviously still no dice. Your default Python install probably is NOT installed at /usr/bin/ python, but there should be a symbolic link there that points to the actual location. If not, you'll need to adjust things a bit. -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sep 26, 2010, at 6:18 PM, Marc Tompkins wrote: On Sun, Sep 26, 2010 at 3:04 PM, David Hutto smokefl...@gmail.com wrote: Pretty sure it's the parentheses, but I'm not an expert. In python 3 you use print(), in 2.6 you either use import from __futur__ or print string here. I mean __future__ . The parentheses are optional in 2.6, mandatory in 3. In 2.6, print and print() are alternate ways to invoke the print statement; in 3 the print statement has been replaced by the print() function. If you want to use the function instead of the statement, you must do this: from __future__ import print_function but I'm pretty sure that's not the OP's issue. Yes, not a parenthesis issue (happens whether I use them or not, I've tried both ways). -- www.fsrtechnologies.com By the way guys, thank you so much for the help. I'm sort of learning this on my own and don't know where to go when I hit a wall like this... ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sun, Sep 26, 2010 at 3:24 PM, Bill DeBroglie bill.debrog...@gmail.comwrote: Is this what you mean? matthew-parrillas-macbook:Dawson_Book matthewparrilla$ #!/usr/bin/env python matthew-parrillas-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 1: syntax error near unexpected token `Hello World' ./chapter_2.py: line 1: `print(Hello World)' If so, obviously still no dice. No, I meant that you should edit your .py file and add #!/usr/bin/env python as the first line, THEN try to run it. Right now what's happening is that you're handing a line of Python script to the shell and asking it to run it; the shell is telling you (oh-so-politely) what the hell is this? You need to give it a clue. -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Sep 26, 2010, at 6:29 PM, Marc Tompkins wrote: On Sun, Sep 26, 2010 at 3:24 PM, Bill DeBroglie bill.debrog...@gmail.com wrote: Is this what you mean? matthew-parrillas-macbook:Dawson_Book matthewparrilla$ #!/usr/bin/ env python matthew-parrillas-macbook:Dawson_Book matthewparrilla$ ./chapter_2.py ./chapter_2.py: line 1: syntax error near unexpected token `Hello World' ./chapter_2.py: line 1: `print(Hello World)' If so, obviously still no dice. No, I meant that you should edit your .py file and add #!/usr/bin/env python as the first line, THEN try to run it. BINGO! Right now what's happening is that you're handing a line of Python script to the shell and asking it to run it; the shell is telling you (oh-so-politely) what the hell is this? You need to give it a clue. Thank you for the translation. So I need to do this with every .py file? My friend who was helping me (he's only been at this a few months) doesn't need to do this. Is that possible or is he just misleading me? -- www.fsrtechnologies.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On Mon, 27 Sep 2010 08:37:08 am Bill DeBroglie wrote: No, I meant that you should edit your .py file and add #!/usr/bin/env python as the first line, THEN try to run it. BINGO! Right now what's happening is that you're handing a line of Python script to the shell and asking it to run it; the shell is telling you (oh-so-politely) what the hell is this? You need to give it a clue. Thank you for the translation. So I need to do this with every .py file? Only if you want to run them without specifying Python on the command line. You can always call python first: python name-of-my-script.py instead of just name-of-my-script.py -- Steven D'Aprano ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues In Terminal
On 2:59 PM, Bill DeBroglie wrote: snip No, I meant that you should edit your .py file and add #!/usr/bin/env python as the first line, THEN try to run it. BINGO! Right now what's happening is that you're handing a line of Python script to the shell and asking it to run it; the shell is telling you (oh-so-politely) what the hell is this? You need to give it a clue. Thank you for the translation. So I need to do this with every .py file? My friend who was helping me (he's only been at this a few months) doesn't need to do this. Is that possible or is he just misleading me? Two times you wouldn't need such a line: 1) in Windows, where file extension determines what the shell will do with the file 2) when you explicitly run the script by naming the python executable, such as: python chapter_2.py ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
