Fixed style for pytest

Author: martinkilbinger

cs_util/plots.py

@@ -53,7 +53,8 @@ def savefig(fname, close_fig=True):
 
 
 def dx(idx, nx=3, fx=1.025, log=True):
-    """Dx Plot.
+    """Dx.
+
     Return small shift useful to diplace points along the the x-axis
     for a more readable plot.
 
@@ -74,6 +75,7 @@ def dx(idx, nx=3, fx=1.025, log=True):
     else:
         return fx * (idx - (nx - 1) / 2)
 
+
 def plot_histograms(
     xs,
     labels,
@@ -261,15 +263,18 @@ def plot_data_1d(
     if linewidths is None:
         linewidths = [2] * len(x)
     if markers is None:
-        markers = ['o'] * len(x)
+        markers = ["o"] * len(x)
 
     if create_figure:
         figure(figsize=(10, 10))
 
     for idx in range(len(x)):
         this_x = x[idx]
         if shift_x:
-            this_x *= dx(idx, len(x), log=xlog)
+            if xlog:
+                this_x *= dx(idx, len(x), log=xlog)
+            else:
+                raise ValueError("shift_x without log not implemented yet")
         if np.isnan(yerr[idx]).all():
             eb = plt.plot(
                 this_x,
@@ -292,7 +297,7 @@ def plot_data_1d(
             )
             eb[-1][0].set_linestyle(eb_linestyles[idx])
 
-    plt.axhline(color="k", linestyle="dashed", linewidth=linewidths[0]/2)
+    plt.axhline(color="k", linestyle="dashed", linewidth=linewidths[0] / 2)
 
     if xlog:
         plt.xscale("log")