deps: drop Python 3.5 and 3.6 (#342)

* deps: support Python 3.9, drop 3.5 and 3.6

* update minimum pandas

* drop 3.9

* drop 3.9

* add docs-presubmit to build

* fix lint session

Author: tswast

.circleci/config.yml

@@ -1,30 +1,34 @@
 version: 2
 jobs:
-  # Pip
-  "pip-3.5":
+  "lint":
     docker:
       - image: thekevjames/nox
+    environment:
+      # Resolve "Python 3 was configured to use ASCII as encoding for the environment"
+      LC_ALL: C.UTF-8
+      LANG: C.UTF-8
     steps:
       - checkout
-      - run: ci/config_auth.sh
-      - run: nox -s unit-3.5 system-3.5
-
-  "pip-3.6":
+      - run: nox -s lint
+  "docs-presubmit":
     docker:
       - image: thekevjames/nox
+    environment:
+      # Resolve "Python 3 was configured to use ASCII as encoding for the environment"
+      LC_ALL: C.UTF-8
+      LANG: C.UTF-8
     steps:
       - checkout
-      - run: ci/config_auth.sh
-      - run: nox -s unit-3.6
+      - run: nox -s docs
 
+  # Pip
   "pip-3.7":
     docker:
       - image: thekevjames/nox
     steps:
       - checkout
       - run: ci/config_auth.sh
       - run: nox -s unit-3.7
-
   "pip-3.8":
     docker:
       - image: thekevjames/nox
@@ -33,33 +37,22 @@ jobs:
       - run: ci/config_auth.sh
       - run: nox -s unit-3.8 system-3.8 cover
 
-  "lint":
-    docker:
-      - image: thekevjames/nox
-    environment:
-      # Resolve "Python 3 was configured to use ASCII as encoding for the environment"
-      LC_ALL: C.UTF-8
-      LANG: C.UTF-8
-    steps:
-      - checkout
-      - run: nox -s lint
-
   # Conda
-  "conda-3.6-0.20.1":
+  "conda-3.7":
     docker:
       - image: continuumio/miniconda3
     environment:
-      PYTHON: "3.6"
-      PANDAS: "0.20.1"
+      PYTHON: "3.7"
+      PANDAS: "0.23.2"
     steps:
       - checkout
       - run: ci/config_auth.sh
       - run: ci/run_conda.sh
-  "conda-3.8-NIGHTLY":
+  "conda-3.9-NIGHTLY":
     docker:
       - image: continuumio/miniconda3
     environment:
-      PYTHON: "3.8"
+      PYTHON: "3.9"
       PANDAS: "NIGHTLY"
     steps:
       - checkout
@@ -70,10 +63,9 @@ workflows:
   version: 2
   build:
     jobs:
-      - "pip-3.5"
-      - "pip-3.6"
+      - lint
+      - docs-presubmit
       - "pip-3.7"
       - "pip-3.8"
-      - lint
-      - "conda-3.6-0.20.1"
-      - "conda-3.8-NIGHTLY"
+      - "conda-3.7"
+      - "conda-3.9-NIGHTLY"

ci/constraints-3.5.pip

@@ -1,3 +1,8 @@
-pandas==0.24.0
-google-cloud-bigquery==1.12.0
-pydata-google-auth==0.1.2
+numpy==1.14.5
+pandas==0.23.2
+google-auth==1.4.1
+google-auth-oauthlib==0.0.1
+google-cloud-bigquery==1.11.1
+google-cloud-bigquery[bqstorage,pandas]==1.11.1
+pydata-google-auth==0.1.2
+tqdm==4.23.0

ci/constraints-3.6.pip

@@ -1 +1 @@
-pandas
+numpy==1.17.5

ci/constraints-3.7.pip

@@ -0,0 +1,2 @@
+numpy==1.19.4
+pandas==1.1.4

ci/constraints-3.8.pip

@@ -13,6 +13,11 @@ Features
   client project. Specify the target table ID as ``project.dataset.table`` to
   use this feature. (:issue:`321`, :issue:`347`)
 
+Dependencies
+~~~~~~~~~~~~
+
+- Drop support for Python 3.5 and 3.6. (:issue:`337`)
+
 
 .. _changelog-0.14.1:
 

ci/constraints-3.9.pip

@@ -10,19 +10,18 @@
 import nox
 
 
-supported_pythons = ["3.5", "3.6", "3.7", "3.8"]
-system_test_pythons = ["3.5", "3.8"]
+supported_pythons = ["3.7", "3.8"]
+system_test_pythons = ["3.7", "3.8"]
 latest_python = "3.8"
 
 # Use a consistent version of black so CI is deterministic.
 # Should match Stickler: https://stickler-ci.com/docs#black
 black_package = "black==20.8b1"
 
 
-@nox.session
-def lint(session, python=latest_python):
+@nox.session(python=latest_python)
+def lint(session):
     session.install(black_package, "flake8")
-    session.install("-e", ".")
     session.run("flake8", "pandas_gbq")
     session.run("flake8", "tests")
     session.run("black", "--check", ".")
@@ -57,8 +56,8 @@ def unit(session):
     )
 
 
-@nox.session
-def cover(session, python=latest_python):
+@nox.session(python=latest_python)
+def cover(session):
     session.install("coverage", "pytest-cov")
     session.run("coverage", "report", "--show-missing", "--fail-under=73")
     session.run("coverage", "erase")

ci/requirements-3.6-0.20.1.conda renamed to ci/requirements-3.7-0.23.2.conda

@@ -18,7 +18,7 @@ def readme():
 
 INSTALL_REQUIRES = [
     "setuptools",
-    "pandas>=0.20.1",
+    "pandas>=0.23.2",
     "pydata-google-auth",
     "google-auth",
     "google-auth-oauthlib",
@@ -44,16 +44,15 @@ def readme():
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Scientific/Engineering",
     ],
     keywords="data",
     install_requires=INSTALL_REQUIRES,
     extras_require=extras,
-    python_requires=">=3.5",
+    python_requires=">=3.7",
     packages=find_packages(exclude=["contrib", "docs", "tests*"]),
     test_suite="tests",
 )