[Bug 1864100] [NEW] Packaging: unable to install python3.7-dev

[Peter Youngmeister]

Public bug reported:

Longtime user, first time reporter (apologies if I make any etiquette
mistakes in this bug report).

when I attempt to install python3.7-dev on a stock 19.10 install, I get
the following:

py at om:~$ sudo apt-get install python3.7-dev                                                                                                                                                                    
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3.7-dev : Depends: python3.7 (= 3.7.5~rc1-2) but 3.7.5-2~19.10 is to be installed
                 Depends: libpython3.7-dev (= 3.7.5~rc1-2) but it is not going to be installed
                 Depends: libpython3.7 (= 3.7.5~rc1-2) but 3.7.5-2~19.10 is to be installed
E: Unable to correct problems, you have held broken packages.

It appears that the current version of libpython3.7 released in this
distro is 3.7.5-2~19.10.

If I attempt to downgrade python3.7 to the version that has an
associated -dev package, the results seem... undesirable:

py at om:~$ sudo apt-get install --allow-downgrades python3.7-minimal=3.7.5~rc1-2 python3.7=3.7.5~rc1-2 libpython3.7-stdlib=3.7.5~rc1-2 libpython3.7-minimal=3.7.5~rc1-2
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  apg gdbserver gedit-common gir1.2-gtksource-4 gnome-control-center-faces gnome-online-accounts hplip-data libbabeltrace1 libc6-dbg libcdio-cdda2 libcdio-paranoia2
  libcolord-gtk1 libdw1 libgee-0.8-2 libgsound0 libgssdp-1.2-0 libgtksourceview-4-0 libgtksourceview-4-common libgupnp-1.2-0 libgupnp-av-1.0-2 libgupnp-dlna-2.0-3
  libimagequant0 libldb1 libmediaart-2.0-0 libmtp-common libmtp-runtime libmtp9 libnfs12 libpeas-common librygel-core-2.6-2 librygel-db-2.6-2
  librygel-renderer-2.6-2 librygel-server-2.6-2 libsane-hpaio libtalloc2 libtevent0 libwbclient0 mobile-broadband-provider-info network-manager-gnome
  printer-driver-postscript-hp python3-gi-cairo python3-macaroonbakery python3-olefile python3-pexpect python3-pil python3-protobuf python3-ptyprocess
  python3-renderpm python3-reportlab python3-reportlab-accel python3-rfc3339 python3-tz rygel ubuntu-system-service vim-runtime
Use 'sudo apt autoremove' to remove them.
Suggested packages:
  python3.7-venv python3.7-doc binfmt-support
The following packages will be REMOVED:
  eog gdb gedit gir1.2-peas-1.0 gnome-control-center gvfs-backends hplip libpeas-1.0-0 libpython3.7 libsmbclient python3-talloc samba-libs ubuntu-desktop
  ubuntu-desktop-minimal vim
The following packages will be DOWNGRADED:
  libpython3.7-minimal libpython3.7-stdlib python3.7 python3.7-minimal
0 upgraded, 0 newly installed, 4 downgraded, 15 to remove and 0 not upgraded.
Need to get 4,337 kB of archives.
After this operation, 55.3 MB disk space will be freed.
Do you want to continue? [Y/n] ^C

Please package a version of python3.7-dev that is compatible with the
rest of the operating system. I would love to use those headers :)

Thank you!

** Affects: python3.7 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1864100

Title:
  Packaging: unable to install python3.7-dev

Status in python3.7 package in Ubuntu:
  New

Bug description:
  Longtime user, first time reporter (apologies if I make any etiquette
  mistakes in this bug report).

  when I attempt to install python3.7-dev on a stock 19.10 install, I
  get the following:

  py at om:~$ sudo apt-get install python3.7-dev                                                                                                                                                                    
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   python3.7-dev : Depends: python3.7 (= 3.7.5~rc1-2) but 3.7.5-2~19.10 is to be installed
                   Depends: libpython3.7-dev (= 3.7.5~rc1-2) but it is not going to be installed
                   Depends: libpython3.7 (= 3.7.5~rc1-2) but 3.7.5-2~19.10 is to be installed
  E: Unable to correct problems, you have held broken packages.

  It appears that the current version of libpython3.7 released in this
  distro is 3.7.5-2~19.10.

  If I attempt to downgrade python3.7 to the version that has an
  associated -dev package, the results seem... undesirable:

  py at om:~$ sudo apt-get install --allow-downgrades python3.7-minimal=3.7.5~rc1-2 python3.7=3.7.5~rc1-2 libpython3.7-stdlib=3.7.5~rc1-2 libpython3.7-minimal=3.7.5~rc1-2
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following packages were automatically installed and are no longer required:
    apg gdbserver gedit-common gir1.2-gtksource-4 gnome-control-center-faces gnome-online-accounts hplip-data libbabeltrace1 libc6-dbg libcdio-cdda2 libcdio-paranoia2
    libcolord-gtk1 libdw1 libgee-0.8-2 libgsound0 libgssdp-1.2-0 libgtksourceview-4-0 libgtksourceview-4-common libgupnp-1.2-0 libgupnp-av-1.0-2 libgupnp-dlna-2.0-3
    libimagequant0 libldb1 libmediaart-2.0-0 libmtp-common libmtp-runtime libmtp9 libnfs12 libpeas-common librygel-core-2.6-2 librygel-db-2.6-2
    librygel-renderer-2.6-2 librygel-server-2.6-2 libsane-hpaio libtalloc2 libtevent0 libwbclient0 mobile-broadband-provider-info network-manager-gnome
    printer-driver-postscript-hp python3-gi-cairo python3-macaroonbakery python3-olefile python3-pexpect python3-pil python3-protobuf python3-ptyprocess
    python3-renderpm python3-reportlab python3-reportlab-accel python3-rfc3339 python3-tz rygel ubuntu-system-service vim-runtime
  Use 'sudo apt autoremove' to remove them.
  Suggested packages:
    python3.7-venv python3.7-doc binfmt-support
  The following packages will be REMOVED:
    eog gdb gedit gir1.2-peas-1.0 gnome-control-center gvfs-backends hplip libpeas-1.0-0 libpython3.7 libsmbclient python3-talloc samba-libs ubuntu-desktop
    ubuntu-desktop-minimal vim
  The following packages will be DOWNGRADED:
    libpython3.7-minimal libpython3.7-stdlib python3.7 python3.7-minimal
  0 upgraded, 0 newly installed, 4 downgraded, 15 to remove and 0 not upgraded.
  Need to get 4,337 kB of archives.
  After this operation, 55.3 MB disk space will be freed.
  Do you want to continue? [Y/n] ^C

  Please package a version of python3.7-dev that is compatible with the
  rest of the operating system. I would love to use those headers :)

  Thank you!

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