deps: drop support for Python 3.7 and 3.8

Author: tswast

README.rst

@@ -52,11 +52,11 @@ dependencies.
 
 Supported Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^
-Python >= 3.7
+Python >= 3.9
 
 Unsupported Python Versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Python == 3.5, Python == 3.6.
+Python <= 3.8.
 
 
 Mac/Linux

owlbot.py

@@ -32,8 +32,6 @@
 extras_bf = ["bqstorage", "bigframes", "geopandas"]
 extras_spanner = ["spanner-graph-notebook"]
 extras_by_python = {
-    "3.7": extras_storage,
-    "3.8": extras_storage,
     "3.9": extras_bf,
     "3.10": extras_bf,
     # Use a middle version of Python to test when no extras are installed.
@@ -42,8 +40,8 @@
     "3.13": extras_bf,
 }
 templated_files = common.py_library(
-    unit_test_python_versions=["3.7", "3.8", "3.9", "3.11", "3.12", "3.13"],
-    system_test_python_versions=["3.8", "3.11", "3.12", "3.13"],
+    unit_test_python_versions=["3.9", "3.11", "3.12", "3.13"],
+    system_test_python_versions=["3.9", "3.11", "3.12", "3.13"],
     cov_level=100,
     unit_test_extras_by_python=extras_by_python,
     unit_test_external_dependencies=["google-cloud-testutils"],

setup.py

@@ -34,7 +34,7 @@
     "ipython>=7.23.1",
     "ipykernel>=5.5.6",
     "packaging >= 20.0.0",
-    "pandas>=1.1.0",
+    "pandas>=1.2.0",
     "pyarrow >= 3.0.0",
     "pydata-google-auth >=1.5.0",
     "tqdm >= 4.7.4, <5.0.0",
@@ -105,20 +105,19 @@
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Operating System :: OS Independent",
         "Topic :: Internet",
     ],
     platforms="Posix; MacOS X; Windows",
     packages=packages,
     install_requires=dependencies,
     extras_require=extras,
-    python_requires=">=3.7",
+    python_requires=">=3.9",
     include_package_data=True,
     zip_safe=False,
 )

testing/constraints-3.7.txt

@@ -1,8 +1,17 @@
-# IMPORTANT: When Python 3.8 support is dropped, update these to
-# match the minimums in setup.py.
+# This constraints file is used to check that lower bounds
+# are correct in setup.py
+# List *all* library dependencies and extras in this file.
+# Pin the version to the lower bound.
 #
-# We try to test across major versions of our dependencies.
-# This is the last pandas 2.0.x release.
-pandas==2.0.3
-bigframes==1.17.0
-geopandas==1.0.1
+# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
+# Then this file should have foo==1.14.0
+db-dtypes==0.3.0
+google-cloud-bigquery==3.13.0
+google-cloud-bigquery-storage==2.6.0
+ipywidgets==7.7.1
+ipython==7.23.1
+ipykernel==5.5.6
+pandas==1.2.0
+pyarrow==3.0.0
+pydata-google-auth==1.5.0
+tqdm==4.7.4