Public bug reported:

With python 2.7.17, ujson==1.35 does not install from PyPI properly.
This was not a problem with 2.7.15-4ubuntu4~18.04.2.

The root cause is likely during the `bdist_wheel` operation, as a whl
built with python 2.7.15 will install and function under 2.7.17.

Steps to reproduce are as follows; I have been reproducing this in the
ubuntu/bionic Docker container:

 apt-get update && apt-get -y install python-pip python2.7-dev
 pip install ujson
 python -c "import ujson"

The resulting error is:

 ImportError: /usr/local/lib/python2.7/dist-packages/ujson.so: undefined
symbol: Buffer_AppendShortHexUnchecked

A diff of dpkg-query -W between working and failing containers follows.
(this is from the full environment, not the MCVE above -- therefore
unrelated packages are shown in the diff).

--- packages.ok 2019-12-17 13:31:58.782715627 -0600
+++ packages.fail       2019-12-17 13:28:36.060153358 -0600
@@ -34,8 +34,8 @@
 gcc-7-base:amd64       7.4.0-1ubuntu1~18.04.1
 gcc-8-base:amd64       8.3.0-6ubuntu1~18.04.1
 gir1.2-glib-2.0:amd64  1.56.1-1
-git    1:2.17.1-1ubuntu0.4
-git-man        1:2.17.1-1ubuntu0.4
+git    1:2.17.1-1ubuntu0.5
+git-man        1:2.17.1-1ubuntu0.5
 gnupg  2.2.4-1ubuntu1.2
 gnupg-l10n     2.2.4-1ubuntu1.2
 gnupg-utils    2.2.4-1ubuntu1.2
@@ -150,10 +150,10 @@
 libpython-all-dev:amd64        2.7.15~rc1-1
 libpython-dev:amd64    2.7.15~rc1-1
 libpython-stdlib:amd64 2.7.15~rc1-1
-libpython2.7:amd64     2.7.15-4ubuntu4~18.04.2
-libpython2.7-dev:amd64 2.7.15-4ubuntu4~18.04.2
-libpython2.7-minimal:amd64     2.7.15-4ubuntu4~18.04.2
-libpython2.7-stdlib:amd64      2.7.15-4ubuntu4~18.04.2
+libpython2.7:amd64     2.7.17-1~18.04
+libpython2.7-dev:amd64 2.7.17-1~18.04
+libpython2.7-minimal:amd64     2.7.17-1~18.04
+libpython2.7-stdlib:amd64      2.7.17-1~18.04
 libpython3-dev:amd64   3.6.7-1~18.04
 libpython3-stdlib:amd64        3.6.7-1~18.04
 libpython3.6:amd64     3.6.9-1~18.04
@@ -249,9 +249,9 @@
 python-six     1.11.0-2
 python-wheel   0.30.0-0.2
 python-xdg     0.25-4ubuntu1
-python2.7      2.7.15-4ubuntu4~18.04.2
-python2.7-dev  2.7.15-4ubuntu4~18.04.2
-python2.7-minimal      2.7.15-4ubuntu4~18.04.2
+python2.7      2.7.17-1~18.04
+python2.7-dev  2.7.17-1~18.04
+python2.7-minimal      2.7.17-1~18.04
 python3        3.6.7-1~18.04
 python3-asn1crypto     0.24.0-1
 python3-cffi-backend   1.11.5-1

** Affects: python2.7 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/1856753

Title:
  python 2.7.17-1~18.04 causes ImportError in ujson.so

Status in python2.7 package in Ubuntu:
  New

Bug description:
  With python 2.7.17, ujson==1.35 does not install from PyPI properly.
  This was not a problem with 2.7.15-4ubuntu4~18.04.2.

  The root cause is likely during the `bdist_wheel` operation, as a whl
  built with python 2.7.15 will install and function under 2.7.17.

  Steps to reproduce are as follows; I have been reproducing this in the
  ubuntu/bionic Docker container:

   apt-get update && apt-get -y install python-pip python2.7-dev
   pip install ujson
   python -c "import ujson"

  The resulting error is:

   ImportError: /usr/local/lib/python2.7/dist-packages/ujson.so:
  undefined symbol: Buffer_AppendShortHexUnchecked

  A diff of dpkg-query -W between working and failing containers
  follows. (this is from the full environment, not the MCVE above --
  therefore unrelated packages are shown in the diff).

  --- packages.ok       2019-12-17 13:31:58.782715627 -0600
  +++ packages.fail     2019-12-17 13:28:36.060153358 -0600
  @@ -34,8 +34,8 @@
   gcc-7-base:amd64     7.4.0-1ubuntu1~18.04.1
   gcc-8-base:amd64     8.3.0-6ubuntu1~18.04.1
   gir1.2-glib-2.0:amd64        1.56.1-1
  -git  1:2.17.1-1ubuntu0.4
  -git-man      1:2.17.1-1ubuntu0.4
  +git  1:2.17.1-1ubuntu0.5
  +git-man      1:2.17.1-1ubuntu0.5
   gnupg        2.2.4-1ubuntu1.2
   gnupg-l10n   2.2.4-1ubuntu1.2
   gnupg-utils  2.2.4-1ubuntu1.2
  @@ -150,10 +150,10 @@
   libpython-all-dev:amd64      2.7.15~rc1-1
   libpython-dev:amd64  2.7.15~rc1-1
   libpython-stdlib:amd64       2.7.15~rc1-1
  -libpython2.7:amd64   2.7.15-4ubuntu4~18.04.2
  -libpython2.7-dev:amd64       2.7.15-4ubuntu4~18.04.2
  -libpython2.7-minimal:amd64   2.7.15-4ubuntu4~18.04.2
  -libpython2.7-stdlib:amd64    2.7.15-4ubuntu4~18.04.2
  +libpython2.7:amd64   2.7.17-1~18.04
  +libpython2.7-dev:amd64       2.7.17-1~18.04
  +libpython2.7-minimal:amd64   2.7.17-1~18.04
  +libpython2.7-stdlib:amd64    2.7.17-1~18.04
   libpython3-dev:amd64 3.6.7-1~18.04
   libpython3-stdlib:amd64      3.6.7-1~18.04
   libpython3.6:amd64   3.6.9-1~18.04
  @@ -249,9 +249,9 @@
   python-six   1.11.0-2
   python-wheel 0.30.0-0.2
   python-xdg   0.25-4ubuntu1
  -python2.7    2.7.15-4ubuntu4~18.04.2
  -python2.7-dev        2.7.15-4ubuntu4~18.04.2
  -python2.7-minimal    2.7.15-4ubuntu4~18.04.2
  +python2.7    2.7.17-1~18.04
  +python2.7-dev        2.7.17-1~18.04
  +python2.7-minimal    2.7.17-1~18.04
   python3      3.6.7-1~18.04
   python3-asn1crypto   0.24.0-1
   python3-cffi-backend 1.11.5-1

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