Public bug reported:
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)
** Affects: python-dateutil (Ubuntu)
Importance: Undecided
Status: New
** Affects: python-sqlalchemy-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug ec2-images groovy
** Also affects: python-sqlalchemy-utils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1887664
Title:
python_dateutil get_zonefile_instance functionality is broken without
upstream tarball
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