[tor-commits] [stem/master] Allow 'proto' lines to have blank values

[atagar@xxxxxxxxxxxxxx]

commit 48d9b843481973e8d5f193defdf6869c5f69a9cc
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Fri Feb 16 17:28:20 2018 -0800

    Allow 'proto' lines to have blank values
    
    Taking into account a small spec change...
    
      https://gitweb.torproject.org/torspec.git/commit/?id=a8455f4
---
 docs/change_log.rst         | 1 +
 stem/descriptor/__init__.py | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/docs/change_log.rst b/docs/change_log.rst
index 5a209b43..4a5e927b 100644
--- a/docs/change_log.rst
+++ b/docs/change_log.rst
@@ -56,6 +56,7 @@ The following are only available within Stem's `git repository
   * `Fallback directory v2 support <https://lists.torproject.org/pipermail/tor-dev/2017-December/012721.html>`_, which adds *nickname* and *extrainfo*
   * Reduced maximum descriptors fetched by the remote module to match tor's new limit (:trac:`24743`)
   * Consensus **shared_randomness_*_reveal_count** attributes undocumented, and unavailable if retrieved before their corresponding shared_randomness_*_value attribute (:trac:`25046`)
+  * Allow 'proto' line to have blank values (:spec:`a8455f4`)
 
  * **Website**
 
diff --git a/stem/descriptor/__init__.py b/stem/descriptor/__init__.py
index 93e2d702..d56b38b8 100644
--- a/stem/descriptor/__init__.py
+++ b/stem/descriptor/__init__.py
@@ -520,6 +520,9 @@ def _parse_protocol_line(keyword, attribute):
       k, v = entry.split('=', 1)
       versions = []
 
+      if not v:
+        continue
+
       for subentry in v.split(','):
         if '-' in subentry:
           min_value, max_value = subentry.split('-', 1)

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