$ pull-debian-source pandas
pull-debian-source: Downloading pandas version 0.19.2-5.1
pull-debian-source: Downloading pandas_0.19.2.orig.tar.gz from httpredir.debian.org (6.104 MiB)
pull-debian-source: Downloading pandas_0.19.2-5.1.debian.tar.xz from httpredir.debian.org (2.282 MiB)
dpkg-source: info: extracting pandas in pandas-0.19.2              
dpkg-source: info: unpacking pandas_0.19.2.orig.tar.gz
dpkg-source: info: unpacking pandas_0.19.2-5.1.debian.tar.xz
dpkg-source: info: applying changeset_233b28f02ec0c88a955e6a26cc43c0a88929536c.diff
dpkg-source: info: applying changeset_848ce49a9f006eadfd169d2fc545a5d15b616f7c.diff
dpkg-source: info: applying changeset_ae6a0a51cf41223394b7ef1038c210045d486cc8.diff
dpkg-source: info: applying changeset_0699c89882133a41c250abdac02796fec84512e8.diff
dpkg-source: info: applying deb_nonversioneer_version
dpkg-source: info: applying deb_doc_donotoverride_PYTHONPATH
dpkg-source: info: applying deb_skip_stata_on_bigendians
dpkg-source: info: applying deb_disable_googleanalytics
dpkg-source: info: applying deb_skip_sequencelike_on_armel
dpkg-source: info: applying deb_skip_test_pytables_failure
dpkg-source: info: applying up_buggy_overflows
dpkg-source: info: applying 858260.patch
$ cd pandas-0.19.2/
$ uscan --report
uscan: Newest version of pandas on remote site is 0.20.1, local version is 0.19.2
uscan:    => Newer package available from
      http://github.com/pandas-dev/pandas/archive/v0.20.1.tar.gz
$ ls ../pandas
pandas-0.19.2/                   pandas_0.19.2.orig.tar.gz
pandas_0.19.2-5.1.debian.tar.xz  pandas_0.20.1.orig.tar.gz
pandas_0.19.2-5.1.dsc            pandas-v0.20.1.tar.gz.tar.gz
$ uupdate ../pandas_0.20.1.orig.tar.gz
uupdate: New Release will be 0.20.1-0ubuntu1.
uupdate: Untarring the new sourcecode archive ../pandas_0.20.1.orig.tar.gz
uupdate: Unpacking the debian/ directory from version 0.19.2-5.1 worked fine.
uupdate: Remember: Your current directory is the OLD sourcearchive!
uupdate: Do a "cd ../pandas-0.20.1" to see the new package