fix matplotlib warnings

pyproject.toml

@@ -37,7 +37,7 @@ dependencies = [
     "imutils>=0.5.4",
     "ipympl>=0.9.1",
     "ipywidgets>=7.7.1",
-    "matplotlib>=3.5.1,<3.10.0",
+    "matplotlib>=3.5.1",
     "numpy>=1.21.6",
     "opencv-python>=4.8.1.78",
     "pynxtools-mpes>=0.2.1",

src/specsanalyzer/core.py

@@ -753,8 +753,7 @@ def update(v_vals, pos_x, pos_y, sigma_x, sigma_y, amplitude):
             fft_filt.set_data(np.abs(fft_filtered_new.T))
 
             nonlocal cont
-            for i in range(len(cont.collections)):
-                cont.collections[i].remove()
+            cont.remove()
             cont = ax.contour(msk.T)
 
             edc.set_ydata(np.sum(filtered_new, 0))

src/specsscan/core.py

@@ -5,7 +5,6 @@
 import os
 import pathlib
 from importlib.util import find_spec
-from logging import warn
 from pathlib import Path
 from typing import Any
 from typing import Sequence
@@ -671,7 +670,7 @@ def process_sweep_scan(
         """
         ekin_step = kinetic_energy[1] - kinetic_energy[0]
         if not (np.diff(kinetic_energy) == ekin_step).all():
-            warn(
+            logger.warning(
                 "Conversion of sweep scans with non-equidistant energy steps "
                 "might produce wrong results!",
             )

src/specsscan/helpers.py

@@ -423,12 +423,8 @@ def handle_meta(
     ts_from = dt.datetime.timestamp(datetime_list[0])  # POSIX timestamp
     ts_to = dt.datetime.timestamp(datetime_list[-1])  # POSIX timestamp
     metadata["timing"] = {
-        "acquisition_start": dt.datetime.utcfromtimestamp(ts_from)
-        .replace(tzinfo=dt.timezone.utc)
-        .isoformat(),
-        "acquisition_stop": dt.datetime.utcfromtimestamp(ts_to)
-        .replace(tzinfo=dt.timezone.utc)
-        .isoformat(),
+        "acquisition_start": dt.datetime.fromtimestamp(ts_from, dt.timezone.utc).isoformat(),
+        "acquisition_stop": dt.datetime.fromtimestamp(ts_to, dt.timezone.utc).isoformat(),
         "acquisition_duration": int(ts_to - ts_from),
         "collection_time": float(ts_to - ts_from),
     }

src/specsscan/metadata.py

@@ -92,7 +92,7 @@ def fetch_epics_metadata(self, ts_from: float, ts_to: float, metadata: dict) ->
         Returns:
             dict: Updated metadata dictionary.
         """
-        start = datetime.datetime.utcfromtimestamp(ts_from)
+        start = datetime.datetime.fromtimestamp(ts_from, datetime.timezone.utc).isoformat()
 
         # replace metadata names by epics channels
         try:
@@ -315,8 +315,16 @@ def get_archiver_data(
     Returns:
         tuple[np.ndarray, np.ndarray]: The extracted time stamps and corresponding data
     """
-    iso_from = datetime.datetime.utcfromtimestamp(ts_from).isoformat()
-    iso_to = datetime.datetime.utcfromtimestamp(ts_to).isoformat()
+    iso_from = (
+        datetime.datetime.fromtimestamp(ts_from, datetime.timezone.utc)
+        .replace(tzinfo=None)
+        .isoformat()
+    )
+    iso_to = (
+        datetime.datetime.fromtimestamp(ts_to, datetime.timezone.utc)
+        .replace(tzinfo=None)
+        .isoformat()
+    )
     req_str = archiver_url + archiver_channel + "&from=" + iso_from + "Z&to=" + iso_to + "Z"
     with urlopen(req_str) as req:
         data = json.load(req)