chore: bump Python version

.github/workflows/build-test.yml

@@ -16,10 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: ["windows-latest", "macos-latest", "ubuntu-latest"]
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
-        exclude:
-          - platform: "windows-latest"
-            python-version: "3.7"
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
     runs-on: "${{ matrix.platform }}"
     timeout-minutes: 30
@@ -73,7 +70,6 @@ jobs:
     runs-on: "${{ matrix.platform }}"
     timeout-minutes: 30
 
-
     steps:
       - uses: "actions/checkout@v4"
 

.pre-commit-config.yaml

@@ -27,3 +27,10 @@ repos:
   hooks:
     - id: ruff
       args: ["--fix", "--show-fixes"]
+
+
+- repo: https://github.com/asottile/pyupgrade
+  rev: v3.13.0
+  hooks:
+  - id: pyupgrade
+    args: ["--py38-plus"]

pyproject.toml

@@ -9,7 +9,7 @@ name = "uproot"
 description = "ROOT I/O in pure Python and NumPy."
 readme = "README.md"
 license = "BSD-3-Clause"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
     { name = "Jim Pivarski", email = "[email protected]" },
 ]
@@ -25,11 +25,11 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "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",
     "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Information Analysis",
     "Topic :: Scientific/Engineering :: Mathematics",
@@ -39,7 +39,6 @@ classifiers = [
 ]
 dependencies = [
     "awkward>=2.0.0",
-    "importlib-metadata;python_version<\"3.8\"",
     "numpy",
     "packaging",
 ]
@@ -50,16 +49,16 @@ dynamic = [
 [project.optional-dependencies]
 dev = [
     "boost_histogram>=0.13",
-    "dask-awkward>=2023.9.0;python_version >= \"3.8\"",
-    "dask[array];python_version >= \"3.8\"",
+    "dask-awkward>=2023.9.0",
+    "dask[array]",
     "hist>=1.2",
     "pandas",
-    "awkward-pandas;python_version >= \"3.8\"",
+    "awkward-pandas",
 ]
 test = [
     "lz4",
     "minio",
-    "aiohttp",
+    "aiohttp; python_version<\"3.12\"",
     "fsspec",
     "fsspec-xrootd",
     "pytest>=6",

src/uproot/extras.py

@@ -10,16 +10,11 @@
 
 
 import atexit
+import importlib.metadata as importlib_metadata
 import os
-import sys
 
 from uproot._util import parse_version
 
-if sys.version_info < (3, 8):
-    import importlib_metadata
-else:
-    import importlib.metadata as importlib_metadata
-
 
 def awkward():
     """

src/uproot/interpretation/identify.py

@@ -14,6 +14,7 @@
 
 
 import ast
+import numbers
 import re
 
 import numpy
@@ -164,15 +165,15 @@ def _float16_double32_walk_ast(node, branch, source):
             and isinstance(node.ctx, ast.Load)
             and node.id.lower() == "pi"
         ):
-            out = ast.Num(3.141592653589793)  # TMath::Pi()
+            out = ast.Constant(3.141592653589793)  # TMath::Pi()
         elif (
             isinstance(node, ast.Name)
             and isinstance(node.ctx, ast.Load)
             and node.id.lower() == "twopi"
         ):
-            out = ast.Num(6.283185307179586)  # TMath::TwoPi()
-        elif isinstance(node, ast.Num):
-            out = ast.Num(float(node.n))
+            out = ast.Constant(6.283185307179586)  # TMath::TwoPi()
+        elif isinstance(node, ast.Constant) and isinstance(node.value, numbers.Number):
+            out = ast.Constant(float(node.value))
         elif isinstance(node, ast.BinOp) and isinstance(
             node.op, (ast.Add, ast.Sub, ast.Mult, ast.Div)
         ):
@@ -201,7 +202,8 @@ def _float16_double32_walk_ast(node, branch, source):
             isinstance(node, ast.List)
             and isinstance(node.ctx, ast.Load)
             and len(node.elts) == 3
-            and isinstance(node.elts[2], ast.Num)
+            and isinstance(node.elts[2], ast.Constant)
+            and isinstance(node.elts[2].value, numbers.Number)
         ):
             out = ast.List(
                 [

src/uproot/language/python.py

@@ -57,8 +57,12 @@ def _walk_ast_yield_symbols(node, keys, aliases, functions, getter):
         and isinstance(node.func, ast.Name)
         and node.func.id == getter
     ):
-        if len(node.args) == 1 and isinstance(node.args[0], ast.Str):
-            yield node.args[0].s
+        if (
+            len(node.args) == 1
+            and isinstance(node.args[0], ast.Constant)
+            and isinstance(node.args[0].value, str)
+        ):
+            yield node.args[0].value
         else:
             raise TypeError(
                 f"expected a constant string as the only argument of {getter!r}; "
@@ -104,7 +108,8 @@ def _ast_as_branch_expression(node, keys, aliases, functions, getter):
         and isinstance(node.func, ast.Name)
         and node.func.id == getter
         and len(node.args) == 1
-        and isinstance(node.args[0], ast.Str)
+        and isinstance(node.args[0], ast.Constant)
+        and isinstance(node.args[0].value, str)
     ):
         return node
 

src/uproot/source/http.py

@@ -39,9 +39,7 @@ def make_connection(parsed_url, timeout):
     from http.client import HTTPConnection, HTTPSConnection
 
     if parsed_url.scheme == "https":
-        return HTTPSConnection(
-            parsed_url.hostname, parsed_url.port, None, None, timeout
-        )
+        return HTTPSConnection(parsed_url.hostname, parsed_url.port, timeout=timeout)
 
     elif parsed_url.scheme == "http":
         return HTTPConnection(parsed_url.hostname, parsed_url.port, timeout)

src/uproot/writing/_cascadetree.py

@@ -780,7 +780,7 @@ def extend(self, file, sink, data):
                             "how did this pass the type check?\n\n" + repr(content)
                         )
 
-                big_endian = numpy.asarray(content, dtype=datum["dtype"])
+                big_endian = numpy.asarray(content.data, dtype=datum["dtype"])
                 shape = tuple(shape) + big_endian.shape[1:]
 
                 if shape[1:] != datum["shape"]:

tests/test_0692_fsspec.py

@@ -10,6 +10,8 @@
 
 @pytest.mark.network
 def test_open_fsspec_http():
+    pytest.importorskip("aiohttp")
+
     with uproot.open(
         "https://github.com/scikit-hep/scikit-hep-testdata/raw/v0.4.33/src/skhep_testdata/data/uproot-issue121.root",
         http_handler=uproot.source.fsspec.FSSpecSource,