[Tutor] Re: Tutor digest, Vol 1 #634 - 13 msgs
Stevenson M Hickey
sthickey@juno.com
Mon, 5 Mar 2001 08:20:15 -0800
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Alan Gauld wrote:
This works best if you are checkjing for type several
times since the import overhead only gets called once.
> > type(mystr) == type("")
This is better if you only do it once since the extra
function call is probably faster than importing the
type module.
______
Am I misunderstanding something?
If you enter: "import type" and hit return, are you not adding only a
pointer to the file 'type.py'?
I ask this, because, after having written 'import type', you have to
instantiate a function in type.py by using the referrent preface --
'type.' in front of the function name, before you can use the function.
Secondly, when using IDLE, I noticed that I can use the function 'type'
without an 'import type' command. Is this something in IDLE, or is
'type' a preferred function that is contained inside the Python
executable? Of course, I am working on Windows (yech) and so do not know
what the 'REAL WORLD' viewpoint is!
So what's the Overhead for this?
If you enter 'from type import *' then, I think, you would have the
overhead of each function in type.py being taken into Ram.
Stevenson Hickey
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<DIV>Alan Gauld wrote:</DIV>
<DIV> </DIV>
<DIV>
<DIV>This works best if you are checkjing for type several <BR>times since =
the=20
import overhead only gets called once.</DIV>
<DIV> </DIV>
<DIV>> > type(mystr) =3D=3D type("") </DIV>
<DIV> </DIV>
<DIV>This is better if you only do it once since the extra <BR>function =
call is=20
probably faster than importing the <BR>type module.</DIV>
<DIV> </DIV>
<DIV>______</DIV>
<DIV> </DIV>
<DIV>Am I misunderstanding something?</DIV>
<DIV> </DIV>
<DIV>If you enter: "import type" and hit return, are you not =
adding=20
only a pointer to the file 'type.py'?</DIV>
<DIV> </DIV>
<DIV>I ask this, because, after having written 'import type', you =
have to=20
instantiate a function in type.py by using the referrent preface --=20
'type.' in front of the function name, before you can use the=20
function.</DIV>
<DIV> </DIV>
<DIV>Secondly, when using IDLE, I noticed that I can use the function 'type=
'=20
without an 'import type' command. Is this something in IDLE, or is '=
type'=20
a preferred function that is contained inside the Python executable? =
Of=20
course, I am working on Windows (yech) and so do not know what the 'REAL =
WORLD'=20
viewpoint is!</DIV>
<DIV> </DIV>
<DIV>So what's the Overhead for this?</DIV>
<DIV> </DIV>
<DIV>If you enter 'from type import *' then, I think, you would have =
the=20
overhead of each function in type.py being taken into Ram. </DIV>
<DIV> </DIV>
<DIV>Stevenson Hickey</DIV>
<DIV> </DIV>
<DIV> </DIV></DIV></BODY></HTML>
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