more flexible type of input arguments for px functions (#1768)

Now accepted: lists, numpy arrays, and the `dataframe` argument can be a dict or a numpy array.

Author: emmanuelle

Diff for: packages/python/plotly/plotly/express/_chart_types.py

@@ -4,7 +4,7 @@
 
 
 def scatter(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -57,7 +57,7 @@ def scatter(
 
 
 def density_contour(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     z=None,
@@ -113,7 +113,7 @@ def density_contour(
 
 
 def density_heatmap(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     z=None,
@@ -167,7 +167,7 @@ def density_heatmap(
 
 
 def line(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     line_group=None,
@@ -212,7 +212,7 @@ def line(
 
 
 def area(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     line_group=None,
@@ -257,7 +257,7 @@ def area(
 
 
 def bar(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -307,7 +307,7 @@ def bar(
 
 
 def histogram(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -364,7 +364,7 @@ def histogram(
 
 
 def violin(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -415,7 +415,7 @@ def violin(
 
 
 def box(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -461,7 +461,7 @@ def box(
 
 
 def strip(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     color=None,
@@ -511,7 +511,7 @@ def strip(
 
 
 def scatter_3d(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     z=None,
@@ -562,7 +562,7 @@ def scatter_3d(
 
 
 def line_3d(
-    data_frame,
+    data_frame=None,
     x=None,
     y=None,
     z=None,
@@ -608,7 +608,7 @@ def line_3d(
 
 
 def scatter_ternary(
-    data_frame,
+    data_frame=None,
     a=None,
     b=None,
     c=None,
@@ -647,7 +647,7 @@ def scatter_ternary(
 
 
 def line_ternary(
-    data_frame,
+    data_frame=None,
     a=None,
     b=None,
     c=None,
@@ -682,7 +682,7 @@ def line_ternary(
 
 
 def scatter_polar(
-    data_frame,
+    data_frame=None,
     r=None,
     theta=None,
     color=None,
@@ -726,7 +726,7 @@ def scatter_polar(
 
 
 def line_polar(
-    data_frame,
+    data_frame=None,
     r=None,
     theta=None,
     color=None,
@@ -766,7 +766,7 @@ def line_polar(
 
 
 def bar_polar(
-    data_frame,
+    data_frame=None,
     r=None,
     theta=None,
     color=None,
@@ -804,7 +804,7 @@ def bar_polar(
 
 
 def choropleth(
-    data_frame,
+    data_frame=None,
     lat=None,
     lon=None,
     locations=None,
@@ -844,7 +844,7 @@ def choropleth(
 
 
 def scatter_geo(
-    data_frame,
+    data_frame=None,
     lat=None,
     lon=None,
     locations=None,
@@ -888,7 +888,7 @@ def scatter_geo(
 
 
 def line_geo(
-    data_frame,
+    data_frame=None,
     lat=None,
     lon=None,
     locations=None,
@@ -930,7 +930,7 @@ def line_geo(
 
 
 def scatter_mapbox(
-    data_frame,
+    data_frame=None,
     lat=None,
     lon=None,
     color=None,
@@ -966,7 +966,7 @@ def scatter_mapbox(
 
 
 def line_mapbox(
-    data_frame,
+    data_frame=None,
     lat=None,
     lon=None,
     color=None,
@@ -997,7 +997,7 @@ def line_mapbox(
 
 
 def scatter_matrix(
-    data_frame,
+    data_frame=None,
     dimensions=None,
     color=None,
     symbol=None,
@@ -1035,7 +1035,7 @@ def scatter_matrix(
 
 
 def parallel_coordinates(
-    data_frame,
+    data_frame=None,
     dimensions=None,
     color=None,
     labels={},
@@ -1059,7 +1059,7 @@ def parallel_coordinates(
 
 
 def parallel_categories(
-    data_frame,
+    data_frame=None,
     dimensions=None,
     color=None,
     labels={},