Move load_pandas() to utils

Signed-off-by: Aarni Koskela <akx@iki.fi>

python/labours/burndown.py

@@ -5,7 +5,7 @@ import warnings
 import numpy
 import tqdm
 
-from labours.utils import floor_datetime
+from labours.utils import floor_datetime, import_pandas
 
 if TYPE_CHECKING:
     from lifelines import KaplanMeierFitter
@@ -185,18 +185,6 @@ def interpolate_burndown_matrix(
     return daily
 
 
-def import_pandas():
-    import pandas
-
-    try:
-        from pandas.plotting import register_matplotlib_converters
-
-        register_matplotlib_converters()
-    except ImportError:
-        pass
-    return pandas
-
-
 def load_burndown(
     header: Tuple[int, int, int, int, float],
     name: str,

python/labours/cli.py

@@ -8,7 +8,8 @@ from typing import List
 
 import numpy
 
-from labours.burndown import import_pandas, load_burndown
+from labours.burndown import load_burndown
+from labours.utils import import_pandas
 from labours.cors_web_server import web_server
 from labours.embeddings import train_embeddings, write_embeddings
 from labours.modes.burndown import plot_burndown, plot_many_burndown

python/labours/modes/ownership.py

@@ -4,9 +4,8 @@ from typing import Any, Dict, List, Tuple
 
 import numpy
 
-from labours.burndown import import_pandas
 from labours.plotting import apply_plot_style, deploy_plot, get_plot_path, import_pyplot
-from labours.utils import default_json, floor_datetime, parse_date
+from labours.utils import default_json, floor_datetime, parse_date, import_pandas
 
 
 def load_ownership(

python/labours/utils.py

@@ -54,3 +54,15 @@ def _format_number(n: Number) -> str:
         n = str(n)
         suffix = ""
     return n + suffix
+
+
+def import_pandas():
+    import pandas
+
+    try:
+        from pandas.plotting import register_matplotlib_converters
+
+        register_matplotlib_converters()
+    except ImportError:
+        pass
+    return pandas