libcomps - Libcomps objects

libcomps.Comps

class libcomps.Comps

Comps class is representating comps.xml file represented in structure form.

Note

members:blacklist, langpacks, whiteout

are Fedora objects only

arch_filter(arch_list) → libcomps.Comps

Filter Comps object content by _arch attribute matchingpassed archictures

Parameters:arch_list (list of strings or libcomps.StrSeq) – list of architectures
Returns:new libcomps.Comps instace
categories_match()

validate inner structure of Comps object.Raise appropriate exception on first occured error

Raises:ValueError – with appropriate error message
clear()

Clear Comps

environments_match()

validate inner structure of Comps object.Raise appropriate exception on first occured error

Raises:ValueError – with appropriate error message
fromxml_f(fname[, def_options]) → int

Load COMPS from xml file

Parameters:
  • fname (str) – filename to be readed
  • def_options (dict) – dictionary containing options used forspecify values of missing objects attributes in xml_str string
Returns:

1 if some non-fatal error occured during parsing

0 if parsing ended without any error
Raises:
  • libcomps.ParserError – if some fatal erroroccured during parsing
  • IOError – if specified filename cannot be opened for reading
fromxml_str(xml_str[, def_options]) → int

Load COMPS from xml string

Parameters:
  • xml_str (str) – string containing comps xml representation
  • def_options (dict) – dictionary containing options used forspecify values of missing objects attributes in xml_str string
Returns:

1 if some non-fatal error occured during parsing

0 if parsing ended without any error
Raises:

libcomps.ParserError – if some fatal error occured during parsing
get_last_errors()

return list of messages from log of last parse action, contains errors only

get_last_log()

return list of messages from log of last parse action.

groups_match()

validate inner structure of Comps object.Raise appropriate exception on first occured error

Raises:ValueError – with appropriate error message
toxml_f(fname[, xml_options[, def_options]]) → int

alias for Comps.xml_f()

toxml_str([xml_options[, def_options]]) → str

alias for Comps.xml_str()

validate()

validate inner structure of Comps object.Raise appropriate exception on first occured error

Raises:ValueError – with appropriate error message
validate_nf()

validate inner structure of Comps class.Returns list of error strings

Return type:list of strings
xml_f(fname[, xml_options[, def_options]]) → list

Generate xml output of Comps class to file

Parameters:
  • fname (str) – filename
  • xml_options (dict) – dict of options used for specify xml output
  • def_options (dict) – dict of options used for specify default values of missing attributes of objects
Returns:

list of errors encountered during xml generating
Return type:

list of strings
Raises:

XMLGenError – if generating xml encounter some fatal error
xml_str([xml_options[, def_options]]) → str

Generate xml output of Comps object a return it as string

Parameters:
  • xml_options (dict) – dict of options used for specify xml output
  • def_options (dict) – dict of options used for specify default values of missing attributes of objects
Returns:

string containing xml output
blacklist

libcomps.MDict of blacklist

categories

libcomps.CategoryList of categories

environments

libcomps.EnvList of environments

groups

libcomps.GroupList of groups

langpacks

libcomps.StrDict of langpacks

whiteout

libcomps.MDict of whiteout

libcomps.GroupList

class libcomps.GroupList

Comps Group list

is class mostly similar to normal python list with few diferences:

  • accepting only specified type of object. GroupList devours only Group instance.
  • accepting string argument in getter/setter items methods as identificator of objects by id.
  • run validation procedure on absorbed object so you can’t append/insert/set invalid Group object
g1 = libcomps.Group()
g1.id = "g1"
comps.categories.append(g1)

g2 = libcomps.Group()
g2.id = "g2"
comps.categories.append(g2)

g = comps.groups["g2"]
comps.categories["g1"] = libcomps.Group()
append()

Append item to new of the list

clear()

Clear the list

insert(pos, item) → None

Insert item into list at position pos

Parameters:pos – intposition
Returns:None
remove(item) → None

Remove first occurence of item from list

Raises:
  • TypeError – If type of item is not type acceptable for list
  • ValueError – If item is not in the list

libcomps.CategoryList

class libcomps.CategoryList

Comps Category list

is class mostly similar to normal python list with few diferences:

  • accepting only specified type of object. CategoryList devours only Category instance.
  • accepting string argument in getter/setter items methods as identificator of objects by id.
  • run validation procedure on absorbed object so you can’t append/insert/set invalid Category object
c1 = libcomps.Category()
c1.id = "c1"
comps.categories.append(c1)

c2 = libcomps.Category()
c2.id = "c2"
comps.categories.append(c2)

c = comps.groups["c2"]
comps.categories["c1"] = libcomps.Category()
append()

Append item to new of the list

clear()

Clear the list

insert(pos, item) → None

Insert item into list at position pos

Parameters:pos – intposition
Returns:None
remove(item) → None

Remove first occurence of item from list

Raises:
  • TypeError – If type of item is not type acceptable for list
  • ValueError – If item is not in the list

libcomps.EnvList

class libcomps.EnvList

Comps Env list

is class mostly similar to normal python list with few diferences:

  • accepting only specified type of object. EnvList devours only Environment instance.
  • accepting string argument in getter/setter items methods as identificator of objects by id.
  • run validation procedure on absorbed object so you can’t append/insert/set invalid Environment object
e1 = libcomps.Environment()
e1.id = "e1"
comps.environments.append(e1)

e2 = libcomps.Environment()
e2.id = "e2"
comps.environments.append(e2)

e = comps.groups["e2"]
comps.categories["e1"] = libcomps.Environment()
append()

Append item to new of the list

clear()

Clear the list

insert(pos, item) → None

Insert item into list at position pos

Parameters:pos – intposition
Returns:None
remove(item) → None

Remove first occurence of item from list

Raises:
  • TypeError – If type of item is not type acceptable for list
  • ValueError – If item is not in the list

libcomps.Group

class libcomps.Group

Comps Group

packages_match()

Return list of packages matching selected criteria

Returns:List of packages
validate()

Validate inner group structure. Raise exception on firstoccured error.

Returns:None if validation successful
Raises:ValueError – on first occured error
biarchonly

Group uservisible attribute

default

Group default attribute

desc

descrition of group

desc_by_lang

dictionary of locale group descriptions

display_order

Group display order attribute

id

group string identificator

lang_only

group langonly attribute

name

name of group

name_by_lang

dictionary of locale group names

packages

libcomps.PackageList of libcomps.Package

uservisible

Group uservisible attribute

libcomps.PackageList

class libcomps.PackageList

Comps Group Package list

is class mostly similar to normal python list with few diferences:

  • accepting only specified type of object. PackageList devours only Package instance.
  • accepting string argument in getter/setter items methods as identificator of package name.
  • run validation procedure on absorbed object so you can’t append/insert/set invalid Package object

libcomps.Package

class libcomps.Package

Comps Group Package

validate()

Validate inner package structure. Raise exception on firstoccured error.

Returns:None if validation successful
Raises:ValueError – on first occured error
basearchonly

Package basearchonly attribute

name

Package name

requires

Package requires

type

package type which could be one of following:

  • libcomps.PACKAGE_TYPE_DEFAULT
  • libcomps.PACKAGE_TYPE_OPTIONAL
  • libcomps.PACKAGE_TYPE_CONDITIONAL
  • libcomps.PACKAGE_TYPE_MANDATORY
  • libcomps.PACKAGE_TYPE_UNKNOWN

libcomps.Category

class libcomps.Category

Comps Category

validate()

validate inner category structure

desc

description of category

desc_by_lang

dictionary of locale category description

display_order

category display order attribute

group_ids

libcomps.IdList of libcomps.GroupId

id

category string identificator

name

name of category

name_by_lang

dictionary of locale category names

libcomps.Environment

class libcomps.Environment

Comps Environment

validate()

Validate inner environment structure. Raise exception on firstoccured error.

Returns:None if validation successful
Raises:ValueError – on first occured error
desc

description of environment

desc_by_lang

dictionary of locale environment descriptions

display_order

environment display order attribute

group_ids

libcomps.IdList of libcomps.GroupId representing environments group list

id

environment string identificator

name

name of environment

name_by_lang

dictionary of locale environment names

option_ids

libcomps.IdList of libcomps.GroupId representing environments option list

libcomps.IdList

class libcomps.IdList

Comps GIDs list

is class mostly similar to normal python list with few diferences:

libcomps.GroupId

class libcomps.GroupId

Comps GroupId

validate()

validate inner Group ID structure

default

Group ID default

name

Group ID name

libcomps.StrDict

class libcomps.StrDict

Comps Str Dict

clear()

clear the dict

copy()

return shallow copy of dict

get(key) → object

Return object associated with key

Parameters:key (str/unicode) – object key
Returns:object if there’s object associated with key

None otherwise
has_key(key) → bool

Tests if there’s key in object

Parameters:key (str/unicode) – object key
Returns:True if there’s object associated with key

False otherwise
items()

return iterator returning (key, value) tuple

keys()

return iterator returning item’s key

update(dict) → None

Update dictionary with (key,value) pair from another dictionary.Existing pairs are overwritten

Parameters:dict – libcomps.Dict instance or subclass instance
Returns:None
values()

return iterator returning item’s value

is very lightweight version of python dict

  • libcomps.StrDict can have only string/unicode keys and accepts only string/unicode object

libcomps.MDict

class libcomps.MDict

Comps Dict

clear()

clear the dict

copy()

return shallow copy of dict

get(key) → list of strings

Return object associated with key

Parameters:key (str/unicode) – object key
Returns:object if there’s object associated with key

None otherwise
has_key(key) → bool

Tests if there’s key in object

Parameters:key (str/unicode) – object key
Returns:True if there’s object associated with key

False otherwise
items()

return iterator returning (key, value) tuple

keys()

return iterator returning item’s key

update(dict) → None

Update dictionary with (key,value) pair from another dictionary.Existing pairs are overwritten

Parameters:dict – libcomps.Dict instance or subclass instance
Returns:None
values()

return iterator returning item’s value

is class similar to python dict, except of these properties:

  • libcomps.MDict can have only string/unicode keys and accepts only list of string or libcomps.StrSeq which is also object returned from dict.__get__()
  • output of StrDict.keys() is in alphabetical order ()

libcomps.StrSeq

class libcomps.StrSeq

Comps Str list

append()

Append item to new of the list

clear()

Clear the list

insert(pos, item) → None

Insert item into list at position pos

Parameters:pos – intposition
Returns:None
remove(item) → None

Remove first occurence of item from list

Raises:
  • TypeError – If type of item is not type acceptable for list
  • ValueError – If item is not in the list

is class similar to list, but accepts only string/unicode objects.