require Python 3.6.1

.github/ISSUE_TEMPLATE/bug_report.md

@@ -19,7 +19,7 @@ A clear and concise description of what you expected to happen.
 
 **System (please complete the following information):**
  - OS: [e.g. OSX, Linux]
- - Python version: [if it's not 3.6, that's probably your problem]
+ - Python version: [if it's not 3.6.1 or later, that's probably your problem]
  - AllenNLP version: [e.g. v0.5.1, or "I installed from master"]
  - PyTorch version: (if you installed it yourself)
 

README.md

@@ -9,16 +9,16 @@ for developing state-of-the-art deep learning models on a wide variety of lingui
 
 ## Installation
 
-The preferred way to install AllenNLP is via `pip`.  Just run `pip install allennlp` in your Python 3.6 environment and you're good to go!
+AllenNLP requires Python 3.6.1 or later. The preferred way to install AllenNLP is via `pip`.  Just run `pip install allennlp` in your Python environment and you're good to go!
 
-If you need pointers on setting up a Python 3.6 environment or would like to install AllenNLP using a different method, see below.
+If you need pointers on setting up an appropriate Python environment or would like to install AllenNLP using a different method, see below.
 
 ### Installing via pip
 
 #### Setting up a virtual environment
 
 [Conda](https://conda.io/) can be used set up a virtual environment with the
-version of Python required for AllenNLP.  If you already have a Python 3.6
+version of Python required for AllenNLP.  If you already have a Python 3.6 or 3.7
 environment you want to use, you can skip to the 'installing via pip' section.
 
 1.  [Download and install Conda](https://conda.io/docs/download.html).

allennlp/__init__.py

@@ -1,9 +1,10 @@
 # pylint: disable=wrong-import-position
 
-# Make sure that allennlp is running in Python 3.6
+# Make sure that allennlp is running on Python 3.6.1 or later
+# (to avoid running into this bug: https://bugs.python.org/issue29246)
 import sys
-if sys.version_info < (3, 6):
-    raise RuntimeError("AllenNLP requires Python 3.6 or later")
+if sys.version_info < (3, 6, 1):
+    raise RuntimeError("AllenNLP requires Python 3.6.1 or later")
 
 # We get a lot of these spurious warnings,
 # see https://github.com/ContinuumIO/anaconda-issues/issues/6678

setup.py

@@ -134,5 +134,5 @@
       setup_requires=setup_requirements,
       tests_require=['pytest', 'flaky', 'responses>=0.7', 'jupyter'],
       include_package_data=True,
-      python_requires='>=3.6',
+      python_requires='>=3.6.1',
       zip_safe=False)