reading dictionary's (key,value) from file

[ankitks.mital@gmail.com]

Folks,
Is it possible to read hash values from txt file.
I have script which sets options. Hash table has key set to option,
and values are option values.

Way we have it, we set options in a different file (*.txt), and we
read from that file.
Is there easy way for just reading file and setting options instead of
parsing it.

so this is what my option files look like:

1opt.txt
{ '-cc': '12',
'-I': r'/my/path/work/'}

2opt.txt
{ '-I': r/my/path/work2/'}

so my scipt how has dictionary
options = { '-cc' :'12'
'-I': r'/my/path/work/:/my/path/work2/'}

I am trying to avoid parsing

[Diez B. Roggisch]

Re: reading dictionary's (key,value) from file

ankitks.mital@g mail.com wrote:

Folks,
Is it possible to read hash values from txt file.
I have script which sets options. Hash table has key set to option,
and values are option values.
>
Way we have it, we set options in a different file (*.txt), and we
read from that file.
Is there easy way for just reading file and setting options instead of
parsing it.
>
so this is what my option files look like:
>
1opt.txt
{ '-cc': '12',
'-I': r'/my/path/work/'}
>
2opt.txt
{ '-I': r/my/path/work2/'}
>
so my scipt how has dictionary
options = { '-cc' :'12'
'-I': r'/my/path/work/:/my/path/work2/'}
>
I am trying to avoid parsing

Use a well-known config-file-format such as the module ConfigParser
supports.

Diez

[Jeffrey Froman]

Re: reading dictionary's (key,value) from file

ankitks.mital@g mail.com wrote:

so this is what my option files look like:
>
1opt.txt
{ '-cc': '12',
'-I': r'/my/path/work/'}

You can turn these strings read from text files into actual dictionaries
using eval:

>>d = eval("{ '-cc': '12', '-I': r'/my/path/work/'}")
>>d

{'-I': '/my/path/work/', '-cc': '12'}

>>type(d)

<type 'dict'>

Note that eval will happily execute all sorts of arbitrary code, so this is
not a good solution if you don't fully trust your option file creators.

It's also a bit clunky compared to simply importing. Since you already have
dictionary-literal syntax in your text file, why not add a
left-hand-operator and make it a module instead? For example:

# opt1.py
d = { '-cc': '12',
'-I': r'/my/path/work/'}

# main.py
from opt1 import d


--
Jeffrey

[Robert Bossy]

Re: reading dictionary's (key,value) from file

ankitks.mital@g mail.com wrote:

Folks,
Is it possible to read hash values from txt file.
I have script which sets options. Hash table has key set to option,
and values are option values.
>
Way we have it, we set options in a different file (*.txt), and we
read from that file.
Is there easy way for just reading file and setting options instead of
parsing it.
>
so this is what my option files look like:
>
1opt.txt
{ '-cc': '12',
'-I': r'/my/path/work/'}
>
2opt.txt
{ '-I': r/my/path/work2/'}
>
so my scipt how has dictionary
options = { '-cc' :'12'
'-I': r'/my/path/work/:/my/path/work2/'}
>
I am trying to avoid parsing
>

For this particular case, you can use the optparse module:

http://docs.python.org/lib/module-optparse.html

Since you're obviously running commands with different set of options, I
suggest you listen to Diez.

Cheers,
RB

[ankitks.mital@gmail.com]

Re: reading dictionary's (key,value) from file

On Apr 7, 11:55 am, Robert Bossy <Robert.Bo...@j ouy.inra.frwrot e:

ankitks.mi...@g mail.com wrote:

Folks,
Is it possible to read hash values from txt file.
I have script which sets options. Hash table has key set to option,
and values are option values.

>

Way we have it, we set options in a different file (*.txt), and we
read from that file.
Is there easy way for just reading file and setting options instead of
parsing it.

>

so this is what my option files look like:

>

1opt.txt
{ '-cc': '12',
  '-I': r'/my/path/work/'}

>

2opt.txt
{  '-I': r/my/path/work2/'}

>

so my scipt how has dictionary
options = { '-cc' :'12'
                '-I': r'/my/path/work/:/my/path/work2/'}

>

I am trying to avoid parsing

>
For this particular case, you can use the optparse module:http://docs.python.org/lib/module-optparse.html
>
Since you're obviously running commands with different set of options, I
suggest you listen to Diez.
>
Cheers,
RB- Hide quoted text -
>
- Show quoted text -

I think I am missing lot regarding optparser module. My only option is
to have option file, and I have couple of those..each user creates
it's own. How can optparser help me in this regard

Thank you

[Terry Reedy]

Re: reading dictionary's (key,value) from file

You can use execfile (or exec, in 3.0) function to execute code in a file
in the present context.

[Raymond Hettinger]

Re: reading dictionary's (key,value) from file

On Apr 7, 9:38 am, ankitks.mi...@g mail.com wrote:

Folks,
Is it possible to read hash values from txt file.
I have script which sets options. Hash table has key set to option,
and values are option values.
>
Way we have it, we set options in a different file (*.txt), and we
read from that file.
Is there easy way for just reading file and setting options instead of
parsing it.
>
so this is what my option files look like:
>
1opt.txt
{ '-cc': '12',
  '-I': r'/my/path/work/'}
>
2opt.txt
{  '-I': r/my/path/work2/'}
>
so my scipt how has dictionary
options = { '-cc' :'12'
                '-I': r'/my/path/work/:/my/path/work2/'}
>
I am trying to avoid parsing

With minimal changes, you can just import the files:

opt1.py
------
opts = { '-cc': '12',
'-I': r'/my/path/work/'}


opt2.py
------
opts = { '-I': r/my/path/work2/'}


main.py
-------
from opts1 import opts as opt1
from opts2 import opts as opt2


Raymond