Modernize code

- remove python 2 support
- add github workflows
- remove disable unicode
- cleanup compat file
- modernize setup
- use pep517

Change-Id: Ic38dbf478046cec5d0815b468f0c235b4ea5e20c

Author: CaselIT

.github/workflows/run-on-pr.yaml

@@ -0,0 +1,43 @@
+name: Run tests on a pr
+
+on:
+  # run on pull request to master excluding changes that are only on doc or example folders
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - "doc/**"
+
+jobs:
+  run-test:
+    name: ${{ matrix.python-version }}-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      # run this job using this matrix
+      matrix:
+        os:
+          - "ubuntu-latest"
+        python-version:
+          - "3.9"
+
+      fail-fast: false
+
+    # steps to run in each job. Some are github actions, others run shell commands
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Set up python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: ${{ matrix.architecture }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade tox setuptools
+          pip list
+
+      - name: Run tests
+        run: tox

.github/workflows/run-test.yaml

@@ -0,0 +1,51 @@
+name: Run tests
+
+on:
+  # run on push in master or rel_* branches excluding changes are only on doc or example folders
+  push:
+    branches:
+      - master
+      - "rel_*"
+      # branches used to test the workflow
+      - "workflow_test_*"
+    paths-ignore:
+      - "docs/**"
+
+jobs:
+  run-test:
+    name: ${{ matrix.python-version }}-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      # run this job using this matrix
+      matrix:
+        os:
+          - "ubuntu-latest"
+          - "windows-latest"
+          - "macos-latest"
+        python-version:
+          - "3.6"
+          - "3.7"
+          - "3.8"
+          - "3.9"
+
+      fail-fast: false
+
+    # steps to run in each job. Some are github actions, others run shell commands
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Set up python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: ${{ matrix.architecture }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade tox setuptools
+          pip list
+
+      - name: Run tests
+        run: tox

.gitignore

@@ -13,3 +13,4 @@
 /man
 .tox/
 .cache/
+.vscode

.travis.yml

@@ -1,4 +1,4 @@
-Copyright 2006-2020 the Mako authors and contributors <see AUTHORS file>.
+Copyright 2006-2021 the Mako authors and contributors <see AUTHORS file>.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

LICENSE

@@ -101,9 +101,7 @@ In addition to the ``expression_filter`` argument, the
 :class:`.TemplateLookup` can specify filtering for all expression tags
 at the programmatic level. This array-based argument, when given
 its default argument of ``None``, will be internally set to
-``["unicode"]`` (or ``["str"]`` on Python 3), except when
-``disable_unicode=True`` is set in which case it defaults to
-``["str"]``:
+``["unicode"]`` (or ``["str"]`` on Python 3):
 
 .. sourcecode:: python
 

doc/build/filtering.rst

@@ -62,16 +62,7 @@ the storage format for strings.
 
 The "pass through encoded data" scheme is what template
 languages like Cheetah and earlier versions of Myghty do by
-default. Mako as of version 0.2 also supports this mode of
-operation when using Python 2, using the ``disable_unicode=True``
-flag. However, when using Mako in its default mode of
-unicode-aware, it requires explicitness when dealing with
-non-ASCII encodings. Additionally, if you ever need to handle
-unicode strings and other kinds of encoding conversions more
-intelligently, the usage of raw byte-strings quickly becomes a
-nightmare, since you are sending the Python interpreter
-collections of bytes for which it can make no intelligent
-decisions with regards to encoding. In Python 3 Mako only allows
+default. In Python 3 Mako only allows 
 usage of native, unicode strings.
 
 In normal Mako operation, all parsed template constructs and
@@ -255,82 +246,5 @@ which cannot handle encoding of non-ASCII ``unicode`` objects
 buffering. Otherwise, a custom Mako class called
 ``FastEncodingBuffer`` is used, which essentially is a super
 dumbed-down version of ``StringIO`` that gathers all strings into
-a list and uses ``u''.join(elements)`` to produce the final output
+a list and uses ``''.join(elements)`` to produce the final output
 -- it's markedly faster than ``StringIO``.
-
-.. _unicode_disabled:
-
-Saying to Heck with It: Disabling the Usage of Unicode Entirely
-===============================================================
-
-Some segments of Mako's userbase choose to make no usage of
-Unicode whatsoever, and instead would prefer the "pass through"
-approach; all string expressions in their templates return
-encoded byte-strings, and they would like these strings to pass
-right through. The only advantage to this approach is that
-templates need not use ``u""`` for literal strings; there's an
-arguable speed improvement as well since raw byte-strings
-generally perform slightly faster than unicode objects in
-Python. For these users, assuming they're sticking with Python
-2, they can hit the ``disable_unicode=True`` flag as so:
-
-.. sourcecode:: python
-
-    # -*- coding:utf-8 -*-
-    from mako.template import Template
-
-    t = Template("drôle de petite voix m’a réveillé.", disable_unicode=True, input_encoding='utf-8')
-    print(t.code)
-
-The ``disable_unicode`` mode is strictly a Python 2 thing. It is
-not supported at all in Python 3.
-
-The generated module source code will contain elements like
-these:
-
-.. sourcecode:: python
-
-    # -*- coding:utf-8 -*-
-    #  ...more generated code ...
-
-    def render_body(context,**pageargs):
-        context.caller_stack.push_frame()
-        try:
-            __M_locals = dict(pageargs=pageargs)
-            # SOURCE LINE 1
-            context.write('dr\xc3\xb4le de petite voix m\xe2\x80\x99a r\xc3\xa9veill\xc3\xa9.')
-            return ''
-        finally:
-            context.caller_stack.pop_frame()
-
-Where above that the string literal used within :meth:`.Context.write`
-is a regular byte-string.
-
-When ``disable_unicode=True`` is turned on, the ``default_filters``
-argument which normally defaults to ``["unicode"]`` now defaults
-to ``["str"]`` instead. Setting ``default_filters`` to the empty list
-``[]`` can remove the overhead of the ``str`` call. Also, in this
-mode you **cannot** safely call :meth:`~.Template.render_unicode` -- you'll get
-unicode/decode errors.
-
-The ``h`` filter (HTML escape) uses a less performant pure Python
-escape function in non-unicode mode. This because
-MarkupSafe only supports Python unicode objects for non-ASCII
-strings.
-
-.. versionchanged:: 0.3.4
-   In prior versions, it used ``cgi.escape()``, which has been replaced
-   with a function that also escapes single quotes.
-
-Rules for using ``disable_unicode=True``
-----------------------------------------
-
-* Don't use this mode unless you really, really want to and you
-  absolutely understand what you're doing.
-* Don't use this option just because you don't want to learn to
-  use Unicode properly; we aren't supporting user issues in this
-  mode of operation. We will however offer generous help for the
-  vast majority of users who stick to the Unicode program.
-* Python 3 is unicode by default, and the flag is not available
-  when running on Python 3.
-

doc/build/unicode.rst

@@ -0,0 +1,4 @@
+.. change::
+    :tags: py3k
+
+    Removed ``disable_unicode`` flag, that's no longer used in Python 3.

doc/build/unreleased/disable_unicode.rst

@@ -0,0 +1,4 @@
+.. change::
+    :tags: py3k
+
+    Remove support for Python 2. Mako now requires Python >= 3.6

doc/build/unreleased/py2.rst

@@ -28,20 +28,10 @@
 # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 # IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-from cgi import escape
-import os
-try:
-    from StringIO import StringIO
-except ImportError:
-    from io import StringIO
+from io import StringIO
 import sys
 import timeit
 
-def u(stringlit):
-    if sys.version_info >= (3,):
-        return stringlit
-    else:
-        return stringlit.decode('latin1')
 
 __all__ = ['mako', 'mako_inheritance', 'jinja2', 'jinja2_inheritance',
             'cheetah', 'django', 'myghty', 'genshi', 'kid']
@@ -50,7 +40,6 @@ def u(stringlit):
 TITLE = 'Just a test'
 USER = 'joe'
 ITEMS = ['Number %d' % num for num in range(1, 15)]
-U_ITEMS = [u(item) for item in ITEMS]
 
 def genshi(dirname, verbose=False):
     from genshi.template import TemplateLoader
@@ -79,11 +68,10 @@ def render():
 def mako(dirname, verbose=False):
     from mako.template import Template
     from mako.lookup import TemplateLookup
-    disable_unicode = (sys.version_info < (3,))
-    lookup = TemplateLookup(directories=[dirname], filesystem_checks=False, disable_unicode=disable_unicode)
+    lookup = TemplateLookup(directories=[dirname], filesystem_checks=False)
     template = lookup.get_template('template.html')
     def render():
-        return template.render(title=TITLE, user=USER, list_items=U_ITEMS)
+        return template.render(title=TITLE, user=USER, list_items=ITEMS)
     if verbose:
         print(template.code + " " + render())
     return render
@@ -94,7 +82,7 @@ def jinja2(dirname, verbose=False):
     env = Environment(loader=FileSystemLoader(dirname))
     template = env.get_template('template.html')
     def render():
-        return template.render(title=TITLE, user=USER, list_items=U_ITEMS)
+        return template.render(title=TITLE, user=USER, list_items=ITEMS)
     if verbose:
         print(render())
     return render
@@ -106,7 +94,7 @@ def cheetah(dirname, verbose=False):
     template = Template(file=filename)
     def render():
         template.__dict__.update({'title': TITLE, 'user': USER,
-                                  'list_items': U_ITEMS})
+                                  'list_items': ITEMS})
         return template.respond()
 
     if verbose: