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This bug was fixed in the package bash - 4.3-14ubuntu1.1

---------------
bash (4.3-14ubuntu1.1) xenial-proposed; urgency=medium

  * SRU: LP: #1595869.
  * Apply upstream patches 043 - 046. Fixes:
    - When the lastpipe option is enabled, the last component can contain
      nested pipelines and cause a segmentation fault under
      certain circumstances.
    - A typo prevents the `compat42' shopt option from working as intended.
    - If a file open attempted as part of a redirection fails because it is
      interrupted by a signal, the shell needs to process any pending traps
      to allow the redirection to be canceled.
    - An incorrect conversion from an indexed to associative array can result
      in a core dump.
  * Add $HOME/.local/bin to PATH, and add the user's home directories
    unconditionally to the path, so that they are available without
    a new login. Closes: #820856, LP: #1588562.

 -- Matthias Klose <doko@xxxxxxxxxx>  Fri, 24 Jun 2016 10:20:17 +0200

** Changed in: bash (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1588562

Title:
  Please add ~/.local/bin to the default $PATH

Status in bash package in Ubuntu:
  Fix Released
Status in bash source package in Xenial:
  Fix Released
Status in bash package in Debian:
  Fix Released

Bug description:
  Starting in Xenial, 'pip install' by default places executables into
  ~/.local/bin. This is the de-facto standard place to put per-user
  executables -- for example, Fedora/Redhat puts it on the $PATH by
  default, and PEP 370 makes it the standard place for unprivileged
  installs of Python packages to put their scripts.

  But unfortunately, Ubuntu's does *not* add this directory to $PATH by
  default, which means that 'pip install' doesn't actually work -- any
  scripts that are installed are inaccessible, and every user has to
  manually add this to their PATH.

  Ubuntu should put ~/.local/bin onto PATH by default.

  Minor details (discussed with @doko at the PyCon sprints):

  - this should go at the beginning of PATH rather than the end, in accordance with Debian policy saying that more-local paths go before more-upstream paths. (This is inconsistent with how Fedora/RH do it, but consistent with how Python itself searches for packages.)
  - this will be added to /etc/skel/profile, so that it won't change any existing user accounts; it will only be applied to user accounts created *after* this change lands
  - unlike ~/bin (which Debian/Ubuntu have supported for ages), it will be added to PATH unconditionally, even if the directory doesn't exist. This is important to avoid a nasty trap for new users, where the first time they try to install a Python package they have to restart their shell. Since this only applies to new accounts, the directory will always start out nonexistent/empty, so having it in $PATH won't cause any unexpected changes in behavior.
  - possibly it would make sense to set this in /etc/environment or /etc/skel/.gnomerc or similar, so that it would also apply to non-shell processes (e.g. if the user wants to add a global key-binding to launch a Python program, then generally ~/.profile *doesn't* affect the environment where this command gets executed, and that can frustrate and confuse users if a command works fine from the terminal but not from a keybinding). But we should defer this discussion for the future, because even if this is a good idea, it isn't a good idea in a Xenial stable update.

  Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=820856

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