diff options
-rw-r--r-- | amqp_codegen.py | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/amqp_codegen.py b/amqp_codegen.py index 0bbb0bc..a2f920f 100644 --- a/amqp_codegen.py +++ b/amqp_codegen.py @@ -24,8 +24,19 @@ ## from __future__ import nested_scopes -import json import re +import sys + +try: + import json +except ImportError: + print >> sys.stderr , " You don't appear to have json.py installed" + print >> sys.stderr , " (an implementation of a JSON reader and writer in Python)." + print >> sys.stderr , " You can install it:" + print >> sys.stderr , " - by running 'apt-get install python-json' on Debian-based systems," + print >> sys.stderr , " - by running 'yum install python-json' on Fedora/Red Hat system," + print >> sys.stderr , " - from sources from 'http://sourceforge.net/projects/json-py'" + sys.exit(1) def insert_base_types(d): for t in ['octet', 'shortstr', 'longstr', 'short', 'long', @@ -142,8 +153,6 @@ class AmqpField(AmqpEntity): def __repr__(self): return 'AmqpField("' + self.name + '")' -import sys - def do_main(header_fn,body_fn): def usage(): print >> sys.stderr , "Usage:" @@ -159,3 +168,4 @@ def do_main(header_fn,body_fn): body_fn(sys.argv[2]) else: usage() + sys.exit(1) |