* Fix build

* Adjusted README

Author: HaaLeo

README.md

@@ -1,8 +1,7 @@
 # pylint-file-header
 
 [![Pypi](https://img.shields.io/pypi/v/pylintfileheader.svg?style=flat-square)](https://pypi.python.org/pypi/pylintfileheader) [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/pylintfileheader.svg?style=flat-square)](https://pypi.python.org/pypi/pylintfileheader) [![PyPI - Downloads](https://img.shields.io/pypi/dm/pylintfileheader.svg?style=flat-square)](https://pypistats.org/packages/pylintfileheader) [![Stars](https://img.shields.io/github/stars/HaaLeo/pylint-file-header.svg?label=Stars&logo=github&style=flat-square)](https://github.com/HaaLeo/pylint-file-header/stargazers)  
-[![PyPI - License](https://img.shields.io/pypi/l/pylintfileheader.svg?style=flat-square)](https://pypi.python.org/pypi/pylintfileheader) 
-[![Build Status](https://img.shields.io/travis/HaaLeo/pylint-file-header/master.svg?style=flat-square)](https://travis-ci.org/HaaLeo/pylint-file-header) [![Codecov](https://img.shields.io/codecov/c/github/HaaLeo/pylint-file-header.svg?style=flat-square)](https://codecov.io/gh/HaaLeo/pylint-file-header) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com)  
+[![PyPI - License](https://img.shields.io/pypi/l/pylintfileheader.svg?style=flat-square)](https://raw.githubusercontent.com/HaaLeo/pylint-file-header/master/LICENSE.txt) [![Build Status](https://img.shields.io/travis/HaaLeo/pylint-file-header/master.svg?style=flat-square)](https://travis-ci.org/HaaLeo/pylint-file-header) [![Codecov](https://img.shields.io/codecov/c/github/HaaLeo/pylint-file-header.svg?style=flat-square)](https://codecov.io/gh/HaaLeo/pylint-file-header) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com)  
 [![Donate](https://img.shields.io/badge/-Donate-blue.svg?logo=paypal&style=flat-square)](https://www.paypal.me/LeoHanisch)
 
 Pylint plugin to enforce consistent file/module header.
@@ -18,7 +17,7 @@ pip install pylintfileheader
 ## Configuration
 
 Generate a `.pylintrc` file by executing `pylint --generate-rcfile`.
-Then add `pylintfileheader` to the plugins to load and set the `file-header` option to the [regular expression](https://docs.python.org/3.7/library/re.html#regular-expression-syntax) that the file header should match.  
+Then add `pylintfileheader` to the plugins to load and set the `file-header` option to the [regular expression](https://docs.python.org/3/library/re.html#regular-expression-syntax) that the file header should match.  
 When the `file-header` setting is omitted, pylint will pass.
 
 ## Example
@@ -31,7 +30,7 @@ When the `file-header` setting is omitted, pylint will pass.
   [MASTER]
   load-plugins=pylintfileheader
 
-  file-header=# -----------\n# lorem ipsum\n# -----------
+  file-header=# -----------\n#[ \w]*\n# -----------
   ```
 
 * **valid_example.py**:  
@@ -66,7 +65,7 @@ When the `file-header` setting is omitted, pylint will pass.
   ```
   Using config file /path/to/your/.pylintrc
   ************* Module invalid_example
-  C:  1, 0: File header should match regex "# -----------\n# lorem ipsum\n# -----------\ (invalid-file-header)
+  C:  1, 0: File header should match regex "# -----------\n#[ \w]*\n# -----------" (invalid-file-header)
 
   -----------------------------------
   Your code has been rated at 8.57/10
@@ -78,5 +77,6 @@ If you found a bug or are missing a feature do not hesitate to [file an issue](h
 Pull Requests are welcome!
 
 ## Support
+
 When you like this package make sure to [star the repository](https://github.com/HaaLeo/pylint-file-header/stargazers). I am always looking for new ideas and feedback.  
 In addition, it is possible to [donate via paypal](https://www.paypal.me/LeoHanisch).

pylintfileheader/file_header_checker.py

@@ -19,7 +19,7 @@ class FileHeaderChecker(BaseChecker):
 
     msgs = {
         'C5001': (
-            'File header should match regex "%s"',
+            'File header must match regex "%s"',
             'invalid-file-header',
             'Used when the file header does not match the '
             'regex configured in the `file-header` option.'
@@ -43,11 +43,11 @@ def process_module(self, node):
         if self.config.file_header:
             if sys.version_info[0] < 3:
                 pattern = re.compile(
-                    '\A' + self.config.file_header, re.LOCALE | re.MULTILINE)
+                    r'\A' + self.config.file_header, re.LOCALE | re.MULTILINE)
             else:
                 # The use of re.LOCALE is discouraged in python 3
                 pattern = re.compile(
-                    '\A' + self.config.file_header, re.MULTILINE)
+                    r'\A' + self.config.file_header, re.MULTILINE)
 
             content = None
             with node.stream() as stream:

pylintfileheadertest/file_header_checker_test.py

@@ -4,7 +4,7 @@
 # ---------------------------------------------------------------------------------------------
 
 # pylint: disable=invalid-name,unused-variable
-from unittest.mock import MagicMock
+from mock import MagicMock
 import pylint.testutils
 from pylintfileheader.file_header_checker import FileHeaderChecker
 

setup.py

@@ -41,8 +41,10 @@
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7'
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8'
     ]
 )