syntax error in first-time user script
jpolo at mail.usf.edu
Fri Mar 24 10:33:11 EDT 2017
On 3/24/2017 9:11 AM, Bob Gailer wrote:
> On Mar 24, 2017 4:53 AM, "john polo" <jpolo at mail.usf.edu
> <mailto:jpolo at mail.usf.edu>> wrote:
> > Greetings,
> > I am attempting to learn Python. I have no programming background.
> I'm on a computer with Windows 7. I checked the PATH in System
> Variables and Python and Python\Scripts are in the path. I have a
> book, Python for Biologists and it supplies example scripts, one is
> called comment.py. The output from comment.py is
> > Comments are very useful!
> > I use cd to get to the directory with the example scripts
> We can assume you are at a Windows command prompt. It' a good idea too
> tell us that, so we don't have to assume!
> and open a command prompt with "python" and get the prompt.
> Assumptions / terminology again! Typing "python" normally invokes the
> python interpreter. Since you did not pass any arguments you get a
> window displaying the python interpreter prompt (>>>).
> I type
> > "python comment.py"
> > and get
> > " File "<stdin>", line 1
> > python comment.py
> > ^
> > SyntaxError: invalid syntax
> It is great (as John said) that you provided the traceback. It would
> have been even greater if you had given us the rest e.g,
> Microsoft Windows [Version 10.0.14393]
> (c) 2016 Microsoft Corporation. All rights reserved.
> C:\Users\bgailer>cd /examples
> Python 3.3.5 (v3.3.5:62cf4e77f785, Mar 9 2014, 10:35:05) [MSC v.1600
> 64 bit (AMD64)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
> >>> python comment.py
> File "<stdin>", line 1
> python comment.py
> SyntaxError: invalid syntax
> Which brings up one other important matter: when writing us also tell
> us which python version you are using. In my example it is 3.3.5.
I'm using 3.6.0.
> > Sorry, I realize this may not all line up like it does when I'm
> typing this in the email. The caret/error pointer is under the t in
> comment. I am not sure what is causing this error.
> > If I type
> > "import comment.py"
> > the output is
> > "Comments are very useful!
> > Traceback (most recent call last):
> > File "<stdin>", line 1, in <module>
> > ModuleNotFoundError: No module named 'comment.py'; 'comment'
> > "
> > If I use IDLE shell:
> > "python comment.py"
> > "SyntaxError: invalid syntax"
> > I know I can open the file in the editor and use F5, but shouldn't I
> be able to use a command from shell? How do I run comment.py from a
> command line without error? Or is that not possible?
> > cheers,
> > John
> > --
> > https://mail.python.org/mailman/listinfo/python-list
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over the truth, but most of them
pick themselves up and hurry off
as if nothing had happened.
-- Winston Churchill
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