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Comment: Use EDGE_SERVICE_ROOT style for other examples too.
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== Cache Launchpad credentials per application == From <https://launchpad.net/hydrazine> - use your own application name {{{ #!python def create_session(): lplib_cachedir = os.path.expanduser("~/.cache/launchpadlib/") hydrazine_cachedir = os.path.expanduser("~/.cache/hydrazine/") rrd_dir = os.path.expanduser("~/.cache/hydrazine/rrd") for d in [lplib_cachedir, hydrazine_cachedir, rrd_dir]: if not os.path.isdir(d): os.makedirs(d, mode=0700) hydrazine_credentials_filename = os.path.join(hydrazine_cachedir, 'credentials') if os.path.exists(hydrazine_credentials_filename): credentials = Credentials() credentials.load(file( os.path.expanduser("~/.cache/hydrazine/credentials"), "r")) trace('loaded existing credentials') return Launchpad(credentials, service_root, lplib_cachedir) # TODO: handle the case of having credentials that have expired etc else: launchpad = Launchpad.get_token_and_login( 'Hydrazine', service_root, lplib_cachedir) trace('saving credentials...') launchpad.credentials.save(file( hydrazine_credentials_filename, "w")) return launchpad }}} |
Launchpad Help > API > Examples
This page has a bunch of examples of how to use launchpadlib and the Python APIs. Think of it like a cookbook that you can add your favourite recipe to.
If this duplicates launchpadlib or API/Uses too much, then please merge or edit pages as needed.
Find out if your launchpadlib version is recent enough (>= 1.5.1)
1.5.1 or above is the answer you're looking for; all subsequent examples assume you have at least that recent a launchpadlib.
Hello Launchpad!
Ever wanted to have Launchpad greet you by your own name? Now you can, in the comfort of your own home.
The hello-world bit is the name of the application and EDGE_SERVICE_ROOT means connect to the edge server.
Does a bug have a release target?
1 from launchpadlib.launchpad import Launchpad, EDGE_SERVICE_ROOT
2
3 def has_target(bug, series):
4 series_url = str(series)
5 for task in bug.bug_tasks:
6 if str(task).startswith(series_url):
7 return True
8 return False
9
10 launchpad = Launchpad.login_with(
11 'hello-world', EDGE_SERVICE_ROOT)
12 b = launchpad.bugs[324614]
13 ubuntu = launchpad.distributions["ubuntu"]
14 jaunty = ubuntu.getSeries(name_or_version="jaunty")
15 has_target(b, jaunty)
16 ### ==> should evalute to True
Listing the current package versions in a particular distroseries
1 from launchpadlib.launchpad import Launchpad, EDGE_SERVICE_ROOT
2
3 launchpad = Launchpad.login_with(
4 'hello-world', EDGE_SERVICE_ROOT)
5 ubuntu = launchpad.distributions["ubuntu"]
6 archive = ubuntu.main_archive
7 series = ubuntu.current_series
8 archive.getPublishedSources(exact_match=True, source_name="apport", distro_series=series)[0].source_package_version
9 ### ==> should return u'0.123'
Get dsc-files for sources in an archive
1 import re
2 import urlparse
3
4 ### See previous examples for how to get an archive.
5
6 def create_webroot_url_from_self_link(self_link):
7 scheme, netloc, _, _, _ = urlparse.urlsplit(self_link)
8 netloc = netloc.lstrip("api.")
9 return u"%s://%s/" %(scheme, netloc)
10
11 def get_dsc(archive):
12 re_version = re.compile(r"^\d+\:")
13 x = archive.getPublishedSources()
14 webroot = create_webroot_url_from_self_link(archive.self_link)
15 for i in x:
16 version = i.source_package_version
17 version = re_version.sub("", version, 1)
18 yield "%s~%s/+archive/+files/%s_%s.dsc" \
19 %(webroot, archive.owner.name, i.source_package_name, version)
Cache Launchpad credentials per application
From <https://launchpad.net/hydrazine> - use your own application name
1 def create_session():
2 lplib_cachedir = os.path.expanduser("~/.cache/launchpadlib/")
3 hydrazine_cachedir = os.path.expanduser("~/.cache/hydrazine/")
4 rrd_dir = os.path.expanduser("~/.cache/hydrazine/rrd")
5 for d in [lplib_cachedir, hydrazine_cachedir, rrd_dir]:
6 if not os.path.isdir(d):
7 os.makedirs(d, mode=0700)
8
9
10 hydrazine_credentials_filename = os.path.join(hydrazine_cachedir,
11 'credentials')
12 if os.path.exists(hydrazine_credentials_filename):
13 credentials = Credentials()
14 credentials.load(file(
15 os.path.expanduser("~/.cache/hydrazine/credentials"),
16 "r"))
17 trace('loaded existing credentials')
18 return Launchpad(credentials, service_root,
19 lplib_cachedir)
20 # TODO: handle the case of having credentials that have expired etc
21 else:
22 launchpad = Launchpad.get_token_and_login(
23 'Hydrazine',
24 service_root,
25 lplib_cachedir)
26 trace('saving credentials...')
27 launchpad.credentials.save(file(
28 hydrazine_credentials_filename,
29 "w"))
30 return launchpad