{"library":"seqeval","title":"seqeval: Sequence Labeling Evaluation","description":"seqeval is a Python framework for sequence labeling evaluation. It provides metrics like F1 score, precision, recall, and a detailed classification report for tasks such as named-entity recognition and part-of-speech tagging. It is currently at version 1.2.2 and maintains an active release cadence, with updates often focusing on performance improvements and additional evaluation schemes.","language":"python","status":"active","last_verified":"Fri May 15","install":{"commands":["pip install seqeval"],"cli":null},"imports":["from seqeval.metrics import accuracy_score","from seqeval.metrics import precision_score","from seqeval.metrics import recall_score","from seqeval.metrics import f1_score","from seqeval.metrics import classification_report","from seqeval.scheme import IOB2"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"from seqeval.metrics import f1_score\nfrom seqeval.metrics import classification_report\n\ny_true = [['O', 'O', 'B-MISC', 'I-MISC', 'B-MISC', 'O', 'O'], ['B-PER', 'I-PER', 'O']]\ny_pred = [['O', 'O', 'B-MISC', 'I-MISC', 'B-MISC', 'I-MISC', 'O'], ['B-PER', 'I-PER', 'O']]\n\n# Compute F1-score (micro average by default)\nprint(f\"F1 Score (micro): {f1_score(y_true, y_pred):.2f}\")\n\n# Compute F1-score with different averaging methods\nprint(f\"F1 Score (average=None): {f1_score(y_true, y_pred, average=None)}\")\n\n# Generate a full classification report\nreport = classification_report(y_true, y_pred, digits=2)\nprint(\"\\nClassification Report:\\n\", report)\n","lang":"python","description":"Calculate the F1-score and generate a detailed classification report for sequence labeling predictions.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-15","installed_version":"1.2.2","pypi_latest":"1.2.2","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":50,"avg_install_s":11.4,"avg_import_s":3.51,"wheel_type":"sdist"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"seqeval","exit_code":1,"wheel_type":null,"failure_reason":"build_error","import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"seqeval","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":10.4,"import_time_s":2.21,"mem_mb":42.9,"disk_size":"272M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"seqeval","exit_code":1,"wheel_type":null,"failure_reason":"build_error","import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"seqeval","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":10.7,"import_time_s":4.12,"mem_mb":53.3,"disk_size":"289M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"seqeval","exit_code":1,"wheel_type":null,"failure_reason":"build_error","import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"seqeval","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":12.7,"import_time_s":4.77,"mem_mb":52.3,"disk_size":"271M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"seqeval","exit_code":1,"wheel_type":null,"failure_reason":"build_error","import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"seqeval","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":11.4,"import_time_s":4.12,"mem_mb":52.6,"disk_size":"269M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"seqeval","exit_code":1,"wheel_type":null,"failure_reason":"build_error","import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"seqeval","exit_code":0,"wheel_type":"sdist","failure_reason":null,"import_side_effects":"clean","install_time_s":11.6,"import_time_s":2.35,"mem_mb":38.6,"disk_size":"286M"}]}}