@@ -4226,7 +4226,7 @@ def _parse_scatter_color_args(c, edgecolors, kwargs, xsize,
42264226 # favor of mapping, not rgb or rgba.
42274227 # Convenience vars to track shape mismatch *and* conversion failures.
42284228 valid_shape = True # will be put to the test!
4229- n_elem = - 1 # used only for ( some) exceptions
4229+ csize = - 1 # Number of colors; used for some exceptions.
42304230
42314231 if (c_was_none or
42324232 kwcolor is not None or
@@ -4238,8 +4238,8 @@ def _parse_scatter_color_args(c, edgecolors, kwargs, xsize,
42384238 else :
42394239 try : # First, does 'c' look suitable for value-mapping?
42404240 c_array = np .asanyarray (c , dtype = float )
4241- n_elem = c_array .size
4242- if n_elem == xsize :
4241+ csize = c_array .size
4242+ if csize == xsize :
42434243 c = c_array .ravel ()
42444244 else :
42454245 if c_array .shape in ((3 ,), (4 ,)):
@@ -4259,8 +4259,8 @@ def _parse_scatter_color_args(c, edgecolors, kwargs, xsize,
42594259 if c_array is None :
42604260 try : # Then is 'c' acceptable as PathCollection facecolors?
42614261 colors = mcolors .to_rgba_array (c )
4262- n_elem = colors .shape [0 ]
4263- if colors . shape [ 0 ] not in 0 , 1 , xsize ):
4262+ csize = colors .shape [0 ]
4263+ if csize not in 0 , 1 , xsize ):
42644264 # NB: remember that a single color is also acceptable.
42654265 # Besides *colors* will be an empty array if c == 'none'.
42664266 valid_shape = False
@@ -4270,7 +4270,7 @@ def _parse_scatter_color_args(c, edgecolors, kwargs, xsize,
42704270 raise ValueError (
42714271 "'c' argument has {nc} elements, which is not "
42724272 "acceptable for use with 'x' and 'y' with size {xs}."
4273- .format (nc = n_elem , xs = xsize )
4273+ .format (nc = csize , xs = xsize )
42744274 )
42754275 else :
42764276 # Both the mapping *and* the RGBA conversion failed: pretty
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