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import warnings
from eventlet.green import httplib
from eventlet.zipkin import api
# see https://twitter.github.io/zipkin/Instrumenting.html
HDR_TRACE_ID = 'X-B3-TraceId'
HDR_SPAN_ID = 'X-B3-SpanId'
HDR_PARENT_SPAN_ID = 'X-B3-ParentSpanId'
HDR_SAMPLED = 'X-B3-Sampled'
def patch():
warnings.warn("Since current Python thrift release \
doesn't support Python 3, eventlet.zipkin.http \
doesn't also support Python 3 (http.client)")
def unpatch():
pass
def hex_str(n):
"""
Thrift uses a binary representation of trace and span ids
HTTP headers use a hexadecimal representation of the same
"""
return '%0.16x' % (n,)
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