Update examples/python-loganalysis/loganalysis.py

Co-authored-by: Bruce MacDonald <brucewmacdonald@gmail.com>

examples/python-loganalysis/loganalysis.py

@@ -16,16 +16,12 @@ def find_errors_in_log_file():
   with open(log_file_path, 'r') as log_file:
     log_lines = log_file.readlines()
 
-  error_lines = []
-  for i, line in enumerate(log_lines):
-    if re.search('error', line, re.IGNORECASE):
-      error_lines.append(i)
-
-  error_logs = []
-  for error_line in error_lines:
-    start_index = max(0, error_line - prelines)
-    end_index = min(len(log_lines), error_line + postlines)
-    error_logs.extend(log_lines[start_index:end_index])
+error_logs = []
+    for i, line in enumerate(log_lines):
+        if "error" in line.lower():
+            start_index = max(0, i - prelines)
+            end_index = min(len(log_lines), i + postlines + 1)
+            error_logs.extend(log_lines[start_index:end_index])
 
   return error_logs