Fix Overpass status check, cap retries, add CI

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.10', '3.11', '3.12', '3.13']
+    env:
+      # tests that query the live Overpass API are skipped
+      OSMNET_SKIP_NETWORK_TESTS: '1'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e . pytest
+          pip list
+      - name: Test
+        run: pytest -v osmnet

CHANGELOG.rst

@@ -1,3 +1,17 @@
+Unreleased
+==========
+
+* sends a User-Agent header with Overpass API requests and uses https, fixing HTTP 406 errors (#33, thanks to Rhys Williams)
+* uses a descriptive User-Agent, ``osmnet/<version> (+https://github.com/UDST/osmnet)``, for both the interpreter and status requests
+* ``get_pause_duration()`` now queries the status page over https with the User-Agent and finds the slot line by content, so it tolerates the current page layout
+* retries are bounded: ``overpass_request()`` gets a ``max_retries`` argument (default 5) and raises ``OverpassRetryError`` when 429/504 responses persist; ``get_pause_duration()`` gets a ``max_retries`` argument and falls back to ``default_duration`` while the server stays busy
+* unless ``error_pause_duration`` is given, retries wait at least 5 seconds, doubling up to 60, even when the status page reports free slots, so 504s from an overloaded server are not retried back to back
+* ``osm_net_download()``, ``ways_in_bbox()`` and ``network_from_bbox()`` accept ``max_retries`` and pass it on to each Overpass request, so large downloads can allow more retries
+* the wait for the next free slot is read from the status page's "in N seconds" rather than computed from its timestamp and the local clock; ``python-dateutil`` is no longer imported
+* the interpreter request goes to ``overpass-api.de``, the same host as the status request
+* server remarks in an Overpass response are logged as warnings, as intended
+* adds a GitHub Actions workflow running the offline unit tests on Python 3.10-3.13
+
 v0.1.7
 ======
 

osmnet/__init__.py

@@ -1,5 +1,6 @@
-from .load import *
-
 __version__ = "0.1.7"
 
 version = __version__
+
+# load.py reads __version__ for the User-Agent, so define it first
+from .load import *  # noqa: E402