Fix comic list output.

dosage

@@ -174,6 +174,7 @@ def displayHelp(options):
 
 def displayComicHelp(scraperobj):
     """Print description and help for a comic."""
+    orig_context = out.context
     out.context = getScraperName(scraperobj)
     try:
         out.info(u"URL: " + scraperobj.url)
@@ -191,7 +192,7 @@ def displayComicHelp(scraperobj):
         out.exception(msg)
         return 1
     finally:
-        out.context = u''
+        out.context = orig_context
 
 
 # the comic scraper job queue
@@ -207,6 +208,7 @@ def get_hostname(url):
 
 lock = threading.Lock()
 def get_host_lock(url):
+    """Get lock object for given URL host."""
     hostname = get_hostname(url)
     return host_locks.setdefault(hostname, threading.Lock())
 
@@ -280,6 +282,7 @@ def voteComics(options):
 def voteComic(scraperobj):
     """Vote for given comic scraper."""
     errors = 0
+    orig_context = out.context
     out.context = getScraperName(scraperobj)
     try:
         name = scraperobj.getName()
@@ -298,7 +301,7 @@ def voteComic(scraperobj):
         out.exception(msg)
         errors += 1
     finally:
-        out.context = u''
+        out.context = orig_context
     return errors
 
 
@@ -356,22 +359,27 @@ def run(options):
 
 def doList(columnList=True, verbose=False):
     """List available comics."""
-    page = hasattr(sys.stdout, "isatty") and sys.stdout.isatty()
-    if page:
-        fd = StringIO(u'')
-        out.setStream(fd)
-    out.info(u'Available comic scrapers:')
-    out.info(u'Comics tagged with [%s] require age confirmation with the --adult option.' % TAG_ADULT)
-    out.info(u'Non-english comics are tagged with [%s].' % TAG_LANG)
-    scrapers = sorted(getScrapers(['@@']), key=lambda s: s.getName())
-    if columnList:
-        num = doColumnList(scrapers)
-    else:
-        num = doSingleList(scrapers, verbose=verbose)
-    out.info(u'%d supported comics.' % num)
-    if page:
-        pydoc.pager(fd.getvalue())
-    return 0
+    orig_context = out.context
+    out.context = u''
+    try:
+        page = hasattr(sys.stdout, "isatty") and sys.stdout.isatty()
+        if page:
+            fd = StringIO(u'')
+            out.setStream(fd)
+        out.info(u'Available comic scrapers:')
+        out.info(u'Comics tagged with [%s] require age confirmation with the --adult option.' % TAG_ADULT)
+        out.info(u'Non-english comics are tagged with [%s].' % TAG_LANG)
+        scrapers = sorted(getScrapers(['@@']), key=lambda s: s.getName())
+        if columnList:
+            num = doColumnList(scrapers)
+        else:
+            num = doSingleList(scrapers, verbose=verbose)
+        out.info(u'%d supported comics.' % num)
+        if page:
+            pydoc.pager(fd.getvalue())
+        return 0
+    finally:
+        out.context = orig_context
 
 
 def doSingleList(scrapers, verbose=False):

dosagelib/output.py

@@ -21,7 +21,7 @@ class Output(object):
 
     def __init__(self, stream=None):
         """Initialize context and indentation."""
-        self.context = u''
+        self.context = None
         self.level = 0
         self.timestamps = False
         if stream is None:
@@ -77,7 +77,7 @@ class Output(object):
         with lock:
             if self.context:
                 self.stream.write(u'%s%s> ' % (timestamp, self.context))
-            else:
+            elif self.context is None:
                 self.stream.write(u'%s%s> ' % (timestamp, get_threadname()))
             self.stream.write(u'%s' % s, color=color)
             try: