I am running Mac OSX v10.6.4 Snow Leopard
I am running Python 2.6.1
In general get the MacPython distributions of Python etc, they usually
install easier (ie from the GUI) than the "Unix" based versions.
Okay, thanks. I will look into that.
1. How do I execute .py files in the command line shell? I have my
files in /Users/Kevin/python-exercises/ and am opening python in
shell from that directory
There are numerous ways, especially in MacOS.
The simplest way is to put a "shebang" line at the top of your script
and then make them executable:
$ cat> myscript.py
What is the significance of this and how do I use it? I guess this is a
command to add in to Shell, however when I use this I get the following
error:
>>> cat > tryme1.py
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'cat' is not defined
#! /bin/env python
With my configuration, I am guessing I need to change this snippet to:
#! /opt/local/Library/Frameworks/Python.framework/Versions/2.6/bin python
# the above line must be the first line in your file and tells the
# shell where to find python
# rest of your code follows.....
Then use chmod +x to make it executable
$ chmod +x myscript.py
When I try to run this with one of my files I get the following error:
>>> chmod +x tryme1.py
File "<stdin>", line 1
chmod +x tryme1.py
^
SyntaxError: invalid syntax
Now you can run it:
$ myscript.py
Alternatively you can just call python explicitly:
$ python myscript.py
I get a syntax error doing this too:
>>> python tryme1.py
File "<stdin>", line 1
python tryme1.py
^
SyntaxError: invalid syntax
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