Bump minimum Python version to 3.6

.travis.yml

@@ -4,13 +4,6 @@ os: linux
 
 jobs:
   include:
-    - python: '3.7'
-      name: "flake8"
-      env: TOXENV="flake8"
-
-    - python: '3.5'
-      env: TOXENV="check_keys,py35-test,py35-integration"
-
     - python: '3.6'
       env:
         - SO_BUCKET: smart-open
@@ -27,11 +20,16 @@ jobs:
         - BOTO_CONFIG: "/dev/null"
         - SO_ENABLE_MOTO_SERVER: "1"
         - TOXENV: "check_keys,py37-doctest,enable_moto_server,py37-test,py37-benchmark,py37-integration,disable_moto_server"
+
     - python: '3.8'
       env:
         - BOTO_CONFIG: "/dev/null"
         - TOXENV: "check_keys,py38-doctest,test_coverage,py38-integration"
 
+    - python: '3.8'
+      name: "flake8"
+      env: TOXENV="flake8"
+
 install:
   - pip install tox
 

appveyor.yml

@@ -3,7 +3,6 @@ environment:
     TOX_PARALLEL_NO_SPINNER: 1
 
   matrix:
-  - TOXENV: "check_keys,py35-test"
   - TOXENV: "check_keys,py36-test"
   - TOXENV: "check_keys,py37-test"
   - TOXENV: "check_keys,py38-test"

setup.py

@@ -55,8 +55,9 @@ def read(fname):
 aws_deps = ['boto3']
 gcp_deps = ['google-cloud-storage']
 azure_deps = ['azure-storage-blob', 'azure-common', 'azure-core']
+http_deps = ['requests']
 
-all_deps = install_requires + aws_deps + gcp_deps + azure_deps
+all_deps = install_requires + aws_deps + gcp_deps + azure_deps + http_deps
 
 setup(
     name='smart_open',
@@ -90,8 +91,10 @@ def read(fname):
         'gcp': gcp_deps,
         'azure': azure_deps,
         'all': all_deps,
+        'http': http_deps,
+        'webhdfs': http_deps,
     },
-    python_requires=">=3.5.*",
+    python_requires=">=3.6.*",
 
     test_suite="smart_open.tests",
 
@@ -101,9 +104,9 @@ def read(fname):
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Topic :: System :: Distributed Computing',
         'Topic :: Database :: Front-Ends',
     ],

smart_open/http.py

@@ -12,7 +12,10 @@
 import os.path
 import urllib.parse
 
-import requests
+try:
+    import requests
+except ImportError:
+    MISSING_DEPS = True
 
 from smart_open import bytebuffer, constants
 import smart_open.utils

smart_open/webhdfs.py

@@ -16,7 +16,10 @@
 import logging
 import urllib.parse
 
-import requests
+try:
+    import requests
+except ImportError:
+    MISSING_DEPS = True
 
 from smart_open import utils, constants
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.0
-envlist = py{35,36,37,38}-{test,doctest,integration,benchmark}, sdist, flake8
+envlist = py{36,37,38}-{test,doctest,integration,benchmark}, sdist, flake8
 
 [pytest]
 addopts = -rfxEXs --durations=20 --showlocals