[Bug 1887664] Re: python_dateutil get_zonefile_instance functionality is broken without upstream tarball

[Brian Murray]

The Groovy Gorilla has reached end of life, so this bug will not be
fixed for that release

** Changed in: python-dateutil (Ubuntu Groovy)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1887664

Title:
  python_dateutil get_zonefile_instance functionality is broken without
  upstream tarball

Status in python-dateutil package in Ubuntu:
  Incomplete
Status in python-sqlalchemy-utils package in Ubuntu:
  Incomplete
Status in python-dateutil source package in Groovy:
  Won't Fix
Status in python-sqlalchemy-utils source package in Groovy:
  Won't Fix

Bug description:
  python-dateutil expects to have 'dateutil-zoneinfo.tar.gz' in it's
  directory tree, but this file is removed in the packaging. This is
  trivially demonstrated using the package version versus the pip
  version:

  Package version:

  >>> from dateutil.zoneinfo import get_zonefile_instance
  >>> get_zonefile_instance().zones.get('America/Los_Angeles') is None   
  /usr/lib/python3/dist-packages/dateutil/zoneinfo/__init__.py:26: UserWarning: I/O error(2): No such file or directory
    warnings.warn("I/O error({0}): {1}".format(e.errno, e.strerror))
  True

  
  Pip version:

  >>> from dateutil.zoneinfo import get_zonefile_instance
  >>> get_zonefile_instance().zones.get('America/Los_Angeles') is None 
  False
  >>> get_zonefile_instance().zones.get('America/Los_Angeles')
  tzfile('US/Pacific')

  
  This causes sqlalchemy_utils' date functionality to be broken when paired with dateutils as it relies on this functionality. python-dateutil should be updated to include this tarball, or should be updated to fallback on the tzdata package for timezone information for this use case

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: python3-dateutil 2.8.1-4
  ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
  Uname: Linux 5.4.0-37-generic x86_64
  NonfreeKernelModules: algif_hash af_alg binfmt_misc veth nft_masq nft_chain_nat bridge stp llc zfs zunicode zavl icp zcommon znvpair spl zlua ebtable_filter ebtables ip6table_raw ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_raw iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter nf_tables nfnetlink unix_diag softdog overlay nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua kvm_intel input_leds joydev kvm serio_raw sch_fq_codel drm ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid crct10dif_pclmul crc32_pclmul hid virtio_net ghash_clmulni_intel net_failover failover aesni_intel crypto_simd psmouse cryptd glue_helper virtio_blk floppy
  ApportVersion: 2.20.11-0ubuntu42
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Wed Jul 15 12:06:24 2020
  Ec2AMI: ami-00000b08
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.xlarge
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  PackageArchitecture: all
  ProcEnviron:
   TERM=screen-256color
   PATH=(custom, no user)
   LANG=C.UTF-8
  SourcePackage: python-dateutil
  UpgradeStatus: No upgrade log present (probably fresh install)

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