Update tide to v6

functions/_tide_item_python.fish

@@ -0,0 +1,27 @@
+function _tide_item_python
+    if test -n "$VIRTUAL_ENV"
+        if command -q python3
+            python3 --version | string match -qr "(?<v>[\d.]+)"
+        else
+            python --version | string match -qr "(?<v>[\d.]+)"
+        end
+        string match -qr "^.*/(?<dir>.*)/(?<base>.*)" $VIRTUAL_ENV
+        # pipenv $VIRTUAL_ENV looks like /home/ilan/.local/share/virtualenvs/pipenv_project-EwRYuc3l
+        # Detect whether we are using pipenv by looking for 'virtualenvs'. If so, remove the hash at the end.
+        if test "$dir" = virtualenvs
+            string match -qr "(?<base>.*)-.*" $base
+            _tide_print_item python $tide_python_icon' ' "$v ($base)"
+        else if contains -- "$base" virtualenv venv .venv env # avoid generic names
+            _tide_print_item python $tide_python_icon' ' "$v ($dir)"
+        else
+            _tide_print_item python $tide_python_icon' ' "$v ($base)"
+        end
+    else if path is .python-version Pipfile __init__.py pyproject.toml requirements.txt setup.py
+        if command -q python3
+            python3 --version | string match -qr "(?<v>[\d.]+)"
+        else
+            python --version | string match -qr "(?<v>[\d.]+)"
+        end
+        _tide_print_item python $tide_python_icon' ' $v
+    end
+end