Missing escape for tex.

libhts/libhts.py

@@ -363,7 +363,8 @@ def plot_histo(outfile, data, title=None):
     usetex = mpl.rcParams.get("text.usetex", False)
     if usetex:
         data.columns = [texscape(colname) for colname in data.columns]
-        title = sub("_", r"\_", title)
+        #title = sub("_", r"\_", title)
+        title = texscape(title)
     for (read_len, count) in data.iterrows():
         plt.bar(
             read_len,