Re: [Tutor] Getting import to use a variable name
Jim Mooney Py3.4.3winXP wrote:
> On 19 May 2015 at 17:25, Jim Mooney Py3.4.3winXP
> wrote:
>
>>
>> If I can get dir to accept x I can parse the output to get rid of the
>> __xxx stuff and print it out.
>>
>
> By that I mean dir will give me a list of strings I can then use __doc__
> on to get all useful help items.
If you start with an object dir() gives you a list of attribute names. To
get the actual attributes use
attribute = getattr(object, attribute_name)
Then print the attributes' docstring with
print(attribute_name, attribute.__doc__)
The complete example:
$ cat shorthelp.py
import importlib
def first_line(s):
if s is None:
return "(NO HELP AVAILABLE)"
return s.splitlines()[0]
def shorthelp(obj):
if isinstance(obj, str):
# if obj is a string, assume it's a module name
try:
obj = importlib.import_module(obj)
except BaseException as err:
# we really don't want to exit on error
print(err)
return
# documentation for obj
objdoc = first_line(obj.__doc__)
if objdoc:
print(objdoc)
print("-" * len(objdoc))
# documentation for the attributes of obj
names = [name for name in dir(obj) if not name.startswith("_")]
width = max(len(name) for name in names)
for name in names:
print("{:{}} {}".format(
name, width,
first_line(getattr(obj, name).__doc__)))
$ python3 -i shorthelp.py
>>> shorthelp("whatever")
No module named 'whatever'
>>> shorthelp(42)
int(x=0) -> integer
---
bit_length int.bit_length() -> int
conjugateReturns self, the complex conjugate of any int.
denominator int(x=0) -> integer
from_bytes int.from_bytes(bytes, byteorder, *, signed=False) -> int
imag int(x=0) -> integer
numeratorint(x=0) -> integer
real int(x=0) -> integer
to_bytes int.to_bytes(length, byteorder, *, signed=False) -> bytes
>>> shorthelp("pwd")
This module provides access to the Unix password database.
--
getpwall getpwall() -> list_of_entries
getpwnam getpwnam(name) -> (pw_name,pw_passwd,pw_uid,
getpwuid getpwuid(uid) -> (pw_name,pw_passwd,pw_uid,
struct_passwd pwd.struct_passwd: Results from getpw*() routines.
>>> shorthelp(grp)
Traceback (most recent call last):
File "", line 1, in
NameError: name 'grp' is not defined
>>> import grp
>>> shorthelp(grp)
Access to the Unix group database.
--
getgrall getgrall() -> list of tuples
getgrgid getgrgid(id) -> tuple
getgrnam getgrnam(name) -> tuple
struct_group grp.struct_group: Results from getgr*() routines.
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[Tutor] Help with writing a bean bag toss game in python
Hello! I am trying to code a bean-bag toss game in python where the program generates three random dots inside a turtle graphic. Each different hole means a different score, but I don't know how to write the function to calculate the total score with all three random points and display the score on the score board. It is hard to explain, but if anyone has an idea please let me know! thanks ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Getting import to use a variable name
On 20/05/15 09:02, Peter Otten wrote:
$ python3 -i shorthelp.py
shorthelp("whatever")
No module named 'whatever'
shorthelp(42)
int(x=0) -> integer
---
bit_length int.bit_length() -> int
conjugateReturns self, the complex conjugate of any int.
denominator int(x=0) -> integer
...
shorthelp("pwd")
This module provides access to the Unix password database.
--
getpwall getpwall() -> list_of_entries
getpwnam getpwnam(name) -> (pw_name,pw_passwd,pw_uid,
getpwuid getpwuid(uid) -> (pw_name,pw_passwd,pw_uid,
Thats pretty cool Peter. I can see me using that pretty often.
I think I'll be stealing that for my collection of useful tools. :-)
Kudos to Jim for the concept too.
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos
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Re: [Tutor] Help with writing a bean bag toss game in python
On 20/05/15 03:53, Grace Anne St Clair-Bates wrote: Hello! I am trying to code a bean-bag toss game in python where the program generates three random dots inside a turtle graphic. Each different hole means a different score, but I don't know how to write the function to calculate the total score with all three random points and display the score on the score board. It is hard to explain, One of the things you learn in programming is that you can't write code until you understand the concept. So before you worry about the code you need to think more about what you are trying to do. Once you can articulate the problem the solution will be easier to see. And if you can't explain what you are trying to do there is little chance of us guessing what it is. As a start you could try sketching the user interface of your game. Name the elements. Then describe the interaction between the user and the game. (FWIW This technique is known as writing a use-case in software engineering) Include all the alternative outcomes for a given action. HTH -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help with writing a bean bag toss game in python
In a message of Tue, 19 May 2015 19:53:00 -0700, Grace Anne St Clair-Bates writ es: >Hello! I am trying to code a bean-bag toss game in python where the program >generates three random dots inside a turtle graphic. Each different hole >means a different score, but I don't know how to write the function to >calculate the total score with all three random points and display the >score on the score board. It is hard to explain, but if anyone has an idea >please let me know! thanks Hello, and welcome. I am a bit confused here. Are you trying to make an electronic version of the game pictured here: http://media.kohls.com.edgesuite.net/is/image/kohls/1070643?wid=500&hei=500&op_sharpen=1 So by 'turtle graphic' you mean a real picture of a turtle, or are you using the python turtle module to make something else called turtle graphics -- graphics made as if you were a turtle crawling around the screen? https://docs.python.org/2/library/turtle.html In either case, can you show us some code? Thanks very much, Laura Creighton ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
