listener: align numbers by dot

src/listeners/terminal.py

+from pyrocko import util
 import progressbar as pbar
 from .base import Listener
 
@@ -19,20 +20,23 @@ class TerminalListener(Listener):
 
     col_width = 15
     row_name = color.BOLD + '{:<{col_param_width}s}' + color.END
-    parameter_fmt = '{:>{col_width}{type}}'
+    parameter_fmt = '{:{col_width}s}'
 
     def __init__(self):
         self.current_state = None
         self.pbars = {}
 
     def progress_start(self, name, niter):
-        self.pbars[name] = pbar.start(name, niter)
+        pbar = util.progressbar('analysing problem', niter)
+        self.pbars[name] = pbar
+        pbar.start()
 
     def progress_update(self, name, iiter):
         self.pbars[name].update(iiter)
 
     def progress_finish(self, name):
         self.pbars[name].finish()
+        del self.pbars[name]
 
     def state(self, state):
         lines = []
@@ -57,13 +61,15 @@ class TerminalListener(Listener):
             col_width=self.col_width,
             type='s'))
 
+        def fmt(s):
+            return util.gform(s, significant_digits=(self.col_width-1-6)/2)
+
         for ip, parameter_name in enumerate(state.parameter_names):
             l(out_ln.format(
                 parameter_name,
-                *[v[ip] for v in state.parameter_sets.values()],
+                *[fmt(v[ip]) for v in state.parameter_sets.values()],
                 col_param_width=col_param_width,
-                col_width=self.col_width,
-                type='.4g'))
+                col_width=self.col_width))
 
         l(state.extra_text.format(
             col_param_width=col_param_width,