Changeset 2820 for trunk/python

Timestamp:

07/02/13 13:11:02 (11 years ago)

Author:

Malte Marquarding

Message:

Issue #293: added scantbale.drop_history and added extra parameters to scantable.history to allow selection of rows

File:

• trunk/python/scantable.py (modified) (3 diffs)

trunk/python/scantable.py

@@ -2067 +2067 @@
 
     @asaplog_post_dec
-    def history(self, filename=None):
+    def history(self, filename=None, nrows=-1, start=0):
         """\
         Print the history. Optionally to a file.
@@ -2076 +2076 @@
 
         """
-        hist = list(self._gethistory())
+        n = self._historylength()
+        if nrows == -1:
+            nrows = n
+        if start+nrows > n:
+            nrows = nrows-start
+        if n > 1000 and nrows == n:
+            nrows = 1000
+            start = n-1000
+            asaplog.push("Warning: History has {0} entries. Displaying last "
+                         "1000".format(n))
+        hist = list(self._gethistory(nrows, start))
         out = "-"*80
         for h in hist:
-            if h.startswith("---"):
-                out = "\n".join([out, h])
+            if not h.strip():
+                continue
+            if h.find("---") >-1:
+                continue
             else:
                 items = h.split("##")
@@ -2093 +2105 @@
                     s = i.split("=")
                     out += "\n   %s = %s" % (s[0], s[1])
-                out = "\n".join([out, "-"*80])
+                out = "\n".join([out, "*"*80])
         if filename is not None:
             if filename is "":
                 filename = 'scantable_history.txt'
-            import os
             filename = os.path.expandvars(os.path.expanduser(filename))
             if not os.path.isdir(filename):