iMac-TMP:~ joe$ brew upgrade -dv pyside
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/pyside.rb
==> Upgrading 1 outdated package, with result:
pyside 1.2.2_1 -> 5.11.0
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/cmake.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/sphinx-doc.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/llvm.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/libffi.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/python.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/pkg-config.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/gdbm.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/openssl.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/makedepend.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/readline.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/sqlite.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/xz.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/python@2.rb
/usr/local/Homebrew/Library/Homebrew/brew.rb (Formulary::FormulaLoader): loading /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/qt.rb
Error: No available formula with the name "shiboken" (dependency of pyside)
/usr/local/Homebrew/Library/Homebrew/formulary.rb:246:in `get_formula'
/usr/local/Homebrew/Library/Homebrew/formulary.rb:275:in `factory'
/usr/local/Homebrew/Library/Homebrew/dependency.rb:35:in `to_formula'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:434:in `map'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:434:in `runtime_requirements'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:451:in `expand_requirements'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:391:in `compute_dependencies'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:139:in `verify_deps_exist'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:132:in `prelude'
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:143:in `upgrade_formula'
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:98:in `block in upgrade'
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:95:in `each'
/usr/local/Homebrew/Library/Homebrew/cmd/upgrade.rb:95:in `upgrade'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'
iMac-TMP:~ joe$ 

git -C $(brew --repo) checkout 1.4.0
git -C $(brew --repo homebrew/core) checkout 0195d9b55a86da0^
brew install pyside
git -C $(brew --repo) checkout master
git -C $(brew --repo homebrew/core) checkout master
brew upgrade

iMac-TMP:~ joe$ brew config
HOMEBREW_VERSION: 1.6.17-21-g7cc3c2a
ORIGIN: https://github.com/Homebrew/brew
HEAD: 7cc3c2a8461bb8d39961c1dcf40b6321c1489e60
Last commit: 22 minutes ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 8a8877c90f1a4f4cd4f39b6e9f19c93cd1cdb456
Core tap last commit: 2 hours ago
HOMEBREW_PREFIX: /usr/local
HOMEBREW_DEVELOPER: 1
HOMEBREW_FORCE_VENDOR_RUBY: 1
HOMEBREW_GITHUB_API_TOKEN: set
HOMEBREW_MERGE: 1
HOMEBREW_NO_ANALYTICS: 1
HOMEBREW_NO_AUTO_UPDATE: 1
HOMEBREW_SANDBOX: 1
CPU: octa-core 64-bit skylake
Homebrew Ruby: 2.3.7 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.3.7/bin/ruby
Clang: 8.0 build 800
Git: 2.10.1 => /Applications/Xcode.app/Contents/Developer/usr/bin/git
Curl: 7.43.0 => /usr/bin/curl
Java: 10.0.1, 9.0.1, 1.8.0_152, 1.7.0_80
macOS: 10.11.6-x86_64
CLT: 8.2.0.0.1.1480973914
Xcode: 8.2.1
XQuartz: 2.7.11 => /opt/X11
iMac-TMP:~ joe$ 

iMac-TMP:~ joe$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: The filesystem on / appears to be case-sensitive.
The default macOS filesystem is case-insensitive. Please report any apparent problems.
iMac-TMP:~ joe$