require Python 3.5.3+ (#737)

conda/artiq-dev/meta.yaml

@@ -12,7 +12,7 @@ build:
 
 requirements:
   run:
-    - python >=3.5.2,<3.6
+    - python >=3.5.3,<3.6
     - setuptools
     - migen 0.5.dev py_57+gitd4afdeb
     - misoc 0.6.dev py_17+git2d3f62f

conda/artiq-doc.yaml

@@ -6,7 +6,7 @@ channels:
   - m-labs/label/main
   - defaults
 dependencies:
-  - python>=3.5.2,<3.6
+  - python>=3.5.3,<3.6
   - sphinx=1.4.8
   - sphinx-argparse
   - sphinxcontrib-wavedrom

conda/artiq/meta.yaml

@@ -12,10 +12,10 @@ build:
 
 requirements:
   build:
-    - python >=3.5.2,<3.6
+    - python >=3.5.3,<3.6
     - setuptools
   run:
-    - python >=3.5.2,<3.6
+    - python >=3.5.3,<3.6
     - llvmlite-artiq 0.12.0.dev py35_30
     - binutils-or1k-linux
     - pythonparser 1.0

setup.py

@@ -7,8 +7,8 @@ import fastentrypoints
 import versioneer
 
 
-if not (3, 5, 2) <= sys.version_info[:3] < (3, 6, 0):
+if not (3, 5, 3) <= sys.version_info[:3] < (3, 6, 0):
-    raise Exception("You need Python 3.5.2+")
+    raise Exception("You need Python 3.5.3+ (but not 3.6+)")
 
 
 # Depends on PyQt5, but setuptools cannot check for it.