Update Python requirements

Author: mnovozhylov

.travis.yml

@@ -4,12 +4,9 @@ cache:
     pip: true
 matrix:
     include:
-        - python: "3.7"
-          env: NOXSESSION="tests-3.7"
-          dist: xenial
         - python: "3.8"
           env: NOXSESSION="tests-3.8"
-        - python: "3.7"
+        - python: "3.8"
           env: NOXSESSION="lint"
           dist: xenial
 install:

README.md

@@ -52,7 +52,7 @@ The usage of this API is ruled by the Terms of Use at:
 # Requirements
 To integrate this library you need to have:
 
-* Python 3.7+
+* Python 3.8+
 * requests_oauthlib >= 1.3.0
 
 ## Installation

setup.py

@@ -8,7 +8,7 @@
 setup(
     author="Maksym Novozhylov",
     author_email="mnovozhilov@upwork.com",
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Environment :: Web Environment",