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[tor-commits] [stem/master] Replacing our tuple descriptor_type arg with a str



commit d34b30903a071cc0fd8601c9af8a35da3f57f3d2
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Thu Jan 17 23:28:53 2013 -0800

    Replacing our tuple descriptor_type arg with a str
    
    Changing the type of the descriptor_type arg I added earlier today. A string
    would be more intuitive to use than a tuple.
---
 stem/descriptor/__init__.py      |   19 +++++++------------
 stem/descriptor/networkstatus.py |    2 +-
 2 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/stem/descriptor/__init__.py b/stem/descriptor/__init__.py
index 178795c..12a3a3e 100644
--- a/stem/descriptor/__init__.py
+++ b/stem/descriptor/__init__.py
@@ -59,7 +59,7 @@ def parse_file(descriptor_file, descriptor_type = None, path = None):
   :class:`~stem.descriptor.reader.DescriptorReader`.
 
   :param file descriptor_file: opened file with the descriptor contents
-  :param tuple descriptor_type: tuple of the form **(type, major_version, minor_version)** as per the `metrics site <https://metrics.torproject.org/formats.html#descriptortypes>`_
+  :param str descriptor_type: `descriptor type <https://metrics.torproject.org/formats.html#descriptortypes>`_
   :param str path: absolute path to the file's location on disk
 
   :returns: iterator for :class:`stem.descriptor.Descriptor` instances in the file
@@ -85,18 +85,13 @@ def parse_file(descriptor_file, descriptor_type = None, path = None):
   file_parser = None
 
   if descriptor_type is not None:
-    if len(descriptor_type) != 3:
-      raise ValueError("The descriptor_type must be a tuple of the form (type, major_version, minor_version)")
+    descriptor_type_match = re.match("^(\S+) (\d+).(\d+)$", descriptor_type)
 
-    desc_type, major_version, minor_version = descriptor_type
-
-    try:
-      major_version = int(major_version)
-      minor_version = int(minor_version)
-    except ValueError:
-      raise ValueError("The descriptor_type's major and minor versions must be integers")
-
-    file_parser = lambda f: _parse_metrics_file(desc_type, major_version, minor_version, f)
+    if descriptor_type_match:
+      desc_type, major_version, minor_version = descriptor_type_match.groups()
+      file_parser = lambda f: _parse_metrics_file(desc_type, int(major_version), int(minor_version), f)
+    else:
+      raise ValueError("The descriptor_type must be of the form '<type> <major_version>.<minor_version>'")
   elif filename == "cached-descriptors":
     file_parser = stem.descriptor.server_descriptor._parse_file
   elif filename == "cached-extrainfo":
diff --git a/stem/descriptor/networkstatus.py b/stem/descriptor/networkstatus.py
index 2b80f85..fc46fa0 100644
--- a/stem/descriptor/networkstatus.py
+++ b/stem/descriptor/networkstatus.py
@@ -51,7 +51,7 @@ and upfront runtime.
     # Processes the routers as we read them in. The routers refer to a document
     # with an unset 'routers' attribute.
 
-    for router in parse_file(consensus_file, ('network-status-consensus-3', 1, 0)):
+    for router in parse_file(consensus_file, 'network-status-consensus-3 1.0'):
       print router.nickname
 
 **Module Overview:**



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