Use common practice approaches with requirements and packaging

.travis.yml

@@ -14,8 +14,6 @@ env:
  - PYTHONWARNINGS='ignore::DeprecationWarning' # Until python_toolbox is fixed
 
 install:
-- pip install -r requirements.txt -r test_requirements.txt
+- pip install -r test_requirements.txt
 script:
 - pytest
-
-

requirements.in

@@ -0,0 +1,3 @@
+decorator
+future
+six

requirements.txt

@@ -1,3 +1,9 @@
-decorator>=4.3.0
-future>=0.17.1
-six>=1.12.0
+#
+# This file is autogenerated by pip-compile
+# To update, run:
+#
+#    pip-compile --output-file requirements.txt requirements.in
+#
+decorator==4.4.0
+future==0.17.1
+six==1.12.0

setup.py

@@ -1,21 +1,32 @@
-# Copyright 2019 Ram Rachum.
-# This program is distributed under the MIT license.
+"""
+Packaging implementation for PySnooper
 
+Copyright 2019 Ram Rachum.
+This program is distributed under the MIT license.
+"""
 import setuptools
 
+
+def read_file(filename):
+    """Return the contents of a file"""
+    with open(filename) as file:
+        return file.read()
+
+
 setuptools.setup(
     name='PySnooper',
-    version='0.0.9',
+    version='0.0.10',
     author='Ram Rachum',
     author_email='ram@rachum.com',
     description="A poor man's debugger for Python.",
-    long_description=open('README.md', 'r').read(),
+    long_description=read_file('README.md'),
     long_description_content_type='text/markdown',
     url='https://github.com/cool-RR/PySnooper',
     packages=setuptools.find_packages(exclude=['tests']),
-    install_requires=open('requirements.txt', 'r').read().split('\n'),
-    tests_require=open('test_requirements.txt', 'r').read().split('\n'),
+    install_requires=read_file('requirements.in'),
     classifiers=[
+        'Environment :: Console',
+        'Intended Audience :: Developers',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
@@ -24,6 +35,6 @@ setuptools.setup(
         'Programming Language :: Python :: 3.8',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
+        'Topic :: Software Development :: Debuggers',
     ],
-
 )

test_requirements.txt

@@ -1,2 +1,5 @@
-python_toolbox>=0.9.3
-pytest>=4.4.1
+-r requirements.txt
+
+pip-tools
+pytest
+python_toolbox