Drop compat cruft

.github/workflows/ci.yml

@@ -134,6 +134,8 @@ jobs:
             tox: flake8
           - name: Check Newsfragment
             tox: check-newsfragment
+          - name: Run pre-commit hooks
+            tox: pre-commit
 
     steps:
     - uses: actions/checkout@v2

.pre-commit-config.yaml

@@ -0,0 +1,7 @@
+---
+repos:
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v2.31.1
+    hooks:
+      - id: pyupgrade
+        args: [--py37-plus]

MANIFEST.in

@@ -6,6 +6,7 @@ include pyproject.toml
 include tox.ini
 include tox_build.sh
 include tox_check-release.sh
+include *.yaml
 recursive-include src *.rst
 
 exclude bin

admin/check_tag_version_match.py

@@ -21,14 +21,14 @@
 run_version = sys.argv[1]
 
 if not run_version.startswith(TAG_PREFIX):
-    print("Not a twisted release tag name '{}.".format(run_version))
+    print(f"Not a twisted release tag name '{run_version}.")
     sys.exit(1)
 
 run_version = run_version[len(TAG_PREFIX) :]
 
 if run_version != branch_version:
-    print("Branch is at '{}' while tag is '{}'".format(branch_version, run_version))
+    print(f"Branch is at '{branch_version}' while tag is '{run_version}'")
     exit(1)
 
-print("All good. Branch and tag versions match for '{}'.".format(branch_version))
+print(f"All good. Branch and tag versions match for '{branch_version}'.")
 sys.exit(0)

docs/conf.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 #
 # Towncrier documentation build configuration file, created by
 # sphinx-quickstart on Mon Aug 21 20:46:13 2017.
@@ -45,18 +44,18 @@
 master_doc = 'index'
 
 # General information about the project.
-project = u'Towncrier'
-copyright = u'2017, Amber Brown'
-author = u'Amber Brown'
+project = 'Towncrier'
+copyright = '2017, Amber Brown'
+author = 'Amber Brown'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = u'17.08'
+version = '17.08'
 # The full version, including alpha/beta/rc tags.
-release = u'17.08'
+release = '17.08'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -141,8 +140,8 @@
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, 'Towncrier.tex', u'Towncrier Documentation',
-     u'Amber Brown', 'manual'),
+    (master_doc, 'Towncrier.tex', 'Towncrier Documentation',
+     'Amber Brown', 'manual'),
 ]
 
 
@@ -151,7 +150,7 @@
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    (master_doc, 'towncrier', u'Towncrier Documentation',
+    (master_doc, 'towncrier', 'Towncrier Documentation',
      [author], 1)
 ]
 
@@ -162,7 +161,7 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'Towncrier', u'Towncrier Documentation',
+    (master_doc, 'Towncrier', 'Towncrier Documentation',
      author, 'Towncrier', 'One line description of project.',
      'Miscellaneous'),
 ]

setup.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-from __future__ import absolute_import, division, print_function
 
 from setuptools import setup, find_packages
 

src/towncrier/_builder.py

@@ -1,7 +1,6 @@
 # Copyright (c) Amber Brown, 2015
 # See LICENSE for details.
 
-from __future__ import absolute_import, division, print_function
 
 import os
 import textwrap
@@ -134,7 +133,7 @@ def prefixed_lines():
         for line in text.splitlines(True):
             yield (prefix + line if line.strip() else line)
 
-    return u"".join(prefixed_lines())
+    return "".join(prefixed_lines())
 
 
 # Takes the output from find_fragments above. Probably it would be useful to
@@ -153,13 +152,13 @@ def split_fragments(fragments, definitions, all_bullets=True):
                 # By default all fragmetns are append by "-" automatically,
                 # and need to be indented because of that.
                 # (otherwise, assume they are formatted correctly)
-                content = indent(content.strip(), u"  ")[2:]
+                content = indent(content.strip(), "  ")[2:]
             else:
                 # Assume the text is formatted correctly
                 content = content.rstrip()
 
             if definitions[category]["showcontent"] is False:
-                content = u""
+                content = ""
 
             texts = section.get(category, OrderedDict())
 
@@ -180,7 +179,7 @@ def issue_key(issue):
     # issues to sort as strings. We arbitrarily put string issues before
     # integer issues (hopefully no-one uses both at once).
     try:
-        return (int(issue), u"")
+        return (int(issue), "")
     except Exception:
         # Maybe we should sniff strings like "gh-10" -> (10, "gh-10")?
         return (-1, issue)
@@ -195,11 +194,11 @@ def bullet_key(entry):
     text, _ = entry
     if not text:
         return -1
-    if text[:2] == u"- ":
+    if text[:2] == "- ":
         return 0
     elif text[:2] == "* ":
         return 1
-    elif text[:3] == u"#. ":
+    elif text[:3] == "#. ":
         return 2
     return 3
 
@@ -208,7 +207,7 @@ def render_issue(issue_format, issue):
     if issue_format is None:
         try:
             int(issue)
-            return u"#" + issue
+            return "#" + issue
         except Exception:
             return issue
     else:
@@ -276,11 +275,11 @@ def get_indent(text):
         # If bullets are not assumed and we wrap, the subsequent
         # indentation depends on whether or not this is a bullet point.
         # (it is probably usually best to disable wrapping in that case)
-        if all_bullets or text[:2] == u"- " or text[:2] == u"* ":
-            return u"  "
+        if all_bullets or text[:2] == "- " or text[:2] == "* ":
+            return "  "
         elif text[:3] == "#. ":
-            return u"   "
-        return u""
+            return "   "
+        return ""
 
     res = jinja_template.render(
         render_title=render_title,
@@ -292,7 +291,7 @@ def get_indent(text):
         get_indent=get_indent,  # simplify indentation in the jinja template.
     )
 
-    for line in res.split(u"\n"):
+    for line in res.split("\n"):
         if wrap:
             done.append(
                 textwrap.fill(
@@ -306,4 +305,4 @@ def get_indent(text):
         else:
             done.append(line)
 
-    return u"\n".join(done).rstrip() + u"\n"
+    return "\n".join(done).rstrip() + "\n"

src/towncrier/_project.py

@@ -5,7 +5,6 @@
 Responsible for getting the version and name from a project.
 """
 
-from __future__ import absolute_import, division
 
 import sys
 
@@ -26,9 +25,9 @@ def _get_package(package_dir, package):
         try:
             module = import_module(package)
         except ImportError as e:
-            err = "tried to import {}, but ran into this error: {}".format(package, e)
+            err = f"tried to import {package}, but ran into this error: {e}"
             # NOTE: this might be redirected via "towncrier --draft > …".
-            print("ERROR: {}".format(err))
+            print(f"ERROR: {err}")
             raise
         finally:
             sys.path.pop(0)
@@ -55,11 +54,9 @@ def get_version(package_dir, package):
         return ".".join(map(str, version)).strip()
 
     raise Exception(
-        (
             "I only know how to look at a __version__ that is a str, "
             "an Increment Version, or a tuple. If you can't provide "
             "that, use the --version argument and specify one."
-        )
     )
 
 

src/towncrier/_settings/fragment_types.py

@@ -34,11 +34,11 @@ class DefaultFragmentTypesLoader(BaseFragmentTypesLoader):
 
     _default_types = clt.OrderedDict(
         [
-            (u"feature", {"name": u"Features", "showcontent": True}),
-            (u"bugfix", {"name": u"Bugfixes", "showcontent": True}),
-            (u"doc", {"name": u"Improved Documentation", "showcontent": True}),
-            (u"removal", {"name": u"Deprecations and Removals", "showcontent": True}),
-            (u"misc", {"name": u"Misc", "showcontent": False}),
+            ("feature", {"name": "Features", "showcontent": True}),
+            ("bugfix", {"name": "Bugfixes", "showcontent": True}),
+            ("doc", {"name": "Improved Documentation", "showcontent": True}),
+            ("removal", {"name": "Deprecations and Removals", "showcontent": True}),
+            ("misc", {"name": "Misc", "showcontent": False}),
         ]
     )
 

src/towncrier/_settings/load.py

@@ -1,7 +1,6 @@
 # Copyright (c) Amber Brown, 2015
 # See LICENSE for details.
 
-import io
 import os
 import pkg_resources
 
@@ -14,10 +13,10 @@
 class ConfigError(Exception):
     def __init__(self, *args, **kwargs):
         self.failing_option = kwargs.get("failing_option")
-        super(ConfigError, self).__init__(*args)
+        super().__init__(*args)
 
 
-_start_string = u".. towncrier release notes start\n"
+_start_string = ".. towncrier release notes start\n"
 _title_format = None
 _template_fname = "towncrier:default"
 _underlines = ["=", "-", "~"]
@@ -40,7 +39,7 @@ def load_config_from_options(directory, config):
 
     if config is None:
         raise ConfigError(
-            "No configuration file found.\nLooked in: %s" % (base_directory,)
+            f"No configuration file found.\nLooked in: {base_directory}"
         )
 
     return base_directory, config
@@ -62,7 +61,7 @@ def load_config(directory):
 
 
 def load_config_from_file(directory, config_file):
-    with io.open(config_file, "rb") as conffile:
+    with open(config_file, "rb") as conffile:
         config = tomli.load(conffile)
 
     return parse_toml(directory, config)
@@ -123,7 +122,7 @@ def parse_toml(base_path, config):
 
     if not os.path.exists(template):
         raise ConfigError(
-            "The template file '%s' does not exist." % (template,),
+            f"The template file '{template}' does not exist.",
             failing_option="template",
         )
 

src/towncrier/_writer.py

@@ -6,9 +6,7 @@
 affecting existing content.
 """
 
-from __future__ import absolute_import, division
 
-import io
 import os
 
 
@@ -20,13 +18,13 @@ def append_to_newsfile(
 
     if single_file:
         if not os.path.exists(news_file):
-            existing_content = u""
+            existing_content = ""
         else:
-            with io.open(news_file, "r", encoding="utf8") as f:
+            with open(news_file, encoding="utf8") as f:
                 existing_content = f.read()
         existing_content = existing_content.split(start_string, 1)
     else:
-        existing_content = [u""]
+        existing_content = [""]
 
     if top_line and top_line in existing_content:
         raise ValueError("It seems you've already produced newsfiles for this version?")
@@ -36,7 +34,7 @@ def append_to_newsfile(
         if len(existing_content) > 1:
             f.write(existing_content.pop(0).rstrip().encode("utf8"))
             if start_string:
-                f.write((u"\n\n" + start_string + u"\n").encode("utf8"))
+                f.write(("\n\n" + start_string + "\n").encode("utf8"))
 
         f.write(content.encode("utf8"))
         if existing_content:

src/towncrier/build.py

@@ -5,7 +5,6 @@
 Build a combined news file from news fragments.
 """
 
-from __future__ import absolute_import, division, print_function
 
 import os
 import click

src/towncrier/check.py

@@ -1,7 +1,6 @@
 # Copyright (c) Amber Brown, 2018
 # See LICENSE for details.
 
-from __future__ import absolute_import, division
 
 import os
 import sys
@@ -50,7 +49,7 @@ def __main(comparewith, directory, config):
         raise
 
     if not files_changed:
-        click.echo("On {} branch, or no diffs, so no newsfragment required.".format(comparewith))
+        click.echo(f"On {comparewith} branch, or no diffs, so no newsfragment required.")
         sys.exit(0)
 
     files = {
@@ -61,7 +60,7 @@ def __main(comparewith, directory, config):
     click.echo("Looking at these files:")
     click.echo("----")
     for n, change in enumerate(files, start=1):
-        click.echo("{}. {}".format(n, change))
+        click.echo(f"{n}. {change}")
     click.echo("----")
 
     news_file = os.path.normpath(os.path.join(base_directory, config["filename"]))
@@ -95,7 +94,7 @@ def __main(comparewith, directory, config):
     else:
         click.echo("Found:")
         for n, fragment in enumerate(fragments_in_branch, start=1):
-            click.echo("{}. {}".format(n, fragment))
+            click.echo(f"{n}. {fragment}")
         sys.exit(0)