Fix PYTHONPATH issues under Docker

WORKSPACE

@@ -6,15 +6,36 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
     name = "rules_python",
-    strip_prefix = "rules_python-54d1cb35cd54318d59bf38e52df3e628c07d4bbc",
-    urls = ["https://github.com/bazelbuild/rules_python/archive/54d1cb35cd54318d59bf38e52df3e628c07d4bbc.tar.gz"],
-    sha256 = "43c007823228f88d6afe1580d00f349564c97e103309a234fa20a5a10a9ff85b",
+    sha256 = "e220053c4454664c09628ffbb33f245e65f5fe92eb285fbd0bc3a26f173f99d0",
+    strip_prefix = "rules_python-5aa465d5d91f1d9d90cac10624e3d2faf2057bd5",
+    urls = ["https://github.com/bazelbuild/rules_python/archive/5aa465d5d91f1d9d90cac10624e3d2faf2057bd5.tar.gz"],
 )
 
 # This call should always be present.
 load("@rules_python//python:repositories.bzl", "py_repositories")
+
 py_repositories()
 
+# Docker rules for testing
+
+http_archive(
+    name = "io_bazel_rules_docker",
+    sha256 = "413bb1ec0895a8d3249a01edf24b82fd06af3c8633c9fb833a0cb1d4b234d46d",
+    strip_prefix = "rules_docker-0.12.0",
+    urls = ["https://github.com/bazelbuild/rules_docker/releases/download/v0.12.0/rules_docker-v0.12.0.tar.gz"],
+)
+
+load(
+    "@io_bazel_rules_docker//repositories:repositories.bzl",
+    _container_repositories = "repositories",
+)
+
+_container_repositories()
+
+load("@io_bazel_rules_docker//repositories:deps.bzl", _container_deps = "deps")
+
+_container_deps()
+
 # Split remarshal out, most consumers will not need it
 local_repository(
     name = "remarshal",
@@ -29,3 +50,17 @@ poetry(
     lockfile = "//test:poetry.lock",
     pyproject = "//test:pyproject.toml",
 )
+
+# Base image for Docker tests
+load(
+    "@io_bazel_rules_docker//container:container.bzl",
+    "container_pull",
+)
+
+container_pull(
+    name = "python_debian",
+    digest = "sha256:fc754aafacf5ad737f1e313cbd3f7cfedf08cbc713927a9e27683b7210a0aabd",
+    registry = "index.docker.io",
+    repository = "library/python",
+    tag = "3.7.4-slim-buster",
+)

rules_poetry/poetry.bzl

@@ -103,7 +103,8 @@ pip_install(
 
 py_library(
     name = "{name}_library",
-    srcs = [],
+    srcs = glob(["{pkg}/**/*.py"]),
+    data = glob(["{pkg}/**/*"], exclude=["**/*.py", "**/* *", "BUILD", "WORKSPACE"]),
     imports = ["{pkg}"],
     deps = {dependencies},
     visibility = ["//visibility:public"],

test/BUILD

@@ -1,4 +1,5 @@
-load("@rules_python//python:defs.bzl", "py_test")
+load("@rules_python//python:defs.bzl", "py_binary", "py_test")
+load("@io_bazel_rules_docker//lang:image.bzl", "app_layer")
 load("@test_poetry//:dependencies.bzl", "dependency")
 
 py_test(
@@ -21,3 +22,19 @@ py_test(
     ],
 )
 
+py_binary(
+    name = "timezone",
+    srcs = ["timezone.py"],
+    python_version = "PY3",
+    deps = [
+        dependency("pytz"),
+    ],
+)
+
+# can't use the py3_image rule until I figure out how to register a CC toolchain that works in Docker
+app_layer(
+    name = "timezone.image",
+    base = "@python_debian//image",
+    binary = ":timezone",
+    tags = ["manual"],
+)

test/pyproject.toml

@@ -9,6 +9,7 @@ license = "MIT"
 python = "^3.7"
 numpy = "^1.17"
 pandas = "^0.25.1"
+pytz = "^2019.3"
 
 [tool.poetry.dev-dependencies]
 coverage = "^4.5"

test/timezone.py

@@ -0,0 +1,3 @@
+import pytz
+
+print(pytz.utc)