diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index be363c69..6ed7dfa3 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -5,6 +5,7 @@
 **Fixed**
 
 - fix #826: Windows does not support file name include ":"
+- fix #819: maximum recursion error in locusts
 
 ## 2.5.1 (2020-01-02)
 
diff --git a/httprunner/__init__.py b/httprunner/__init__.py
index 86fe1344..75a512bb 100644
--- a/httprunner/__init__.py
+++ b/httprunner/__init__.py
@@ -2,15 +2,3 @@ __version__ = "2.5.2"
 __description__ = "One-stop solution for HTTP(S) testing."
 
 __all__ = ["__version__", "__description__"]
-
-import uuid
-
-import sentry_sdk
-
-sentry_sdk.init(
-    dsn="https://cc6dd86fbe9f4e7fbd95248cfcff114d@sentry.io/1862849",
-    release="httprunner@{}".format(__version__)
-)
-
-with sentry_sdk.configure_scope() as scope:
-    scope.set_user({"id": uuid.getnode()})
diff --git a/httprunner/cli.py b/httprunner/cli.py
index 0ffb17d6..3d37589c 100644
--- a/httprunner/cli.py
+++ b/httprunner/cli.py
@@ -2,7 +2,7 @@ import argparse
 import os
 import sys
 
-from sentry_sdk import capture_exception
+import sentry_sdk
 
 from httprunner import __description__, __version__, exceptions
 from httprunner.api import HttpRunner
@@ -11,7 +11,9 @@ from httprunner.loader import load_cases
 from httprunner.logger import color_print, log_error
 from httprunner.report import gen_html_report
 from httprunner.utils import (create_scaffold, get_python2_retire_msg,
-                              prettify_json_file)
+                              prettify_json_file, init_sentry_sdk)
+
+init_sentry_sdk()
 
 
 def main():
@@ -115,7 +117,7 @@ def main():
     except Exception as ex:
         color_print("!!!!!!!!!! exception stage: {} !!!!!!!!!!".format(runner.exception_stage), "YELLOW")
         color_print(str(ex), "RED")
-        capture_exception(ex)
+        sentry_sdk.capture_exception(ex)
         err_code = 1
 
     sys.exit(err_code)
diff --git a/httprunner/ext/har2case/__init__.py b/httprunner/ext/har2case/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/httprunner/ext/locusts/cli.py b/httprunner/ext/locusts/cli.py
index 364ab22f..90a99a39 100644
--- a/httprunner/ext/locusts/cli.py
+++ b/httprunner/ext/locusts/cli.py
@@ -19,6 +19,9 @@ import os
 import sys
 
 from httprunner import logger
+from httprunner.utils import init_sentry_sdk
+
+init_sentry_sdk()
 
 
 def parse_locustfile(file_path):
diff --git a/httprunner/utils.py b/httprunner/utils.py
index 67b972e8..53d1e15c 100644
--- a/httprunner/utils.py
+++ b/httprunner/utils.py
@@ -7,15 +7,28 @@ import itertools
 import json
 import os.path
 import re
+import uuid
 from datetime import datetime
 
-from httprunner import exceptions, logger
+import sentry_sdk
+
+from httprunner import exceptions, logger, __version__
 from httprunner.compat import basestring, bytes, is_py2
 from httprunner.exceptions import ParamsError
 
 absolute_http_url_regexp = re.compile(r"^https?://", re.I)
 
 
+def init_sentry_sdk():
+    sentry_sdk.init(
+        dsn="https://cc6dd86fbe9f4e7fbd95248cfcff114d@sentry.io/1862849",
+        release="httprunner@{}".format(__version__)
+    )
+
+    with sentry_sdk.configure_scope() as scope:
+        scope.set_user({"id": uuid.getnode()})
+
+
 def set_os_environ(variables_mapping):
     """ set variables mapping to os.environ
     """