{"library":"mendeleev","title":"Mendeleev","description":"Mendeleev is a Python library that provides a convenient API for accessing various properties of elements, ions, and isotopes from the periodic table. It includes functionalities for data manipulation, integration with pandas for bulk data access, and visualization capabilities using libraries like Bokeh and Plotly. The library is actively maintained, with its current version being 1.1.0.","language":"python","status":"active","last_verified":"Sat May 16","install":{"commands":["pip install mendeleev"],"cli":null},"imports":["from mendeleev import Si, Fe","from mendeleev import element","from mendeleev.fetch import fetch_table"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"from mendeleev import element\n\n# Get an element by symbol\nsi = element(\"Si\")\n\n# Access its properties\nprint(f\"Element: {si.name} ({si.symbol})\")\nprint(f\"Atomic Number: {si.atomic_number}\")\nprint(f\"Atomic Weight: {si.atomic_weight}\")\nprint(f\"Electronic Configuration: {si.econf}\")\nprint(f\"Pauling Electronegativity: {si.electronegativity(scale='pauling')}\")\n","lang":"python","description":"This quickstart demonstrates how to import the `element` function and retrieve an element's properties such as name, atomic number, atomic weight, electronic configuration, and electronegativity.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-16","installed_version":"1.1.0","pypi_latest":"1.1.0","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":12.3,"avg_import_s":3.28,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":3.12,"mem_mb":63.7,"disk_size":"217.7M"},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":12.9,"import_time_s":2.39,"mem_mb":63.8,"disk_size":"207M"},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":3.83,"mem_mb":68.6,"disk_size":"235.3M"},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":11.4,"import_time_s":3.47,"mem_mb":68.6,"disk_size":"224M"},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":3.61,"mem_mb":67.6,"disk_size":"228.2M"},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":11,"import_time_s":3.59,"mem_mb":67.3,"disk_size":"217M"},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"broken","install_time_s":null,"import_time_s":3.29,"mem_mb":68.7,"disk_size":"227.1M"},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"broken","install_time_s":11.2,"import_time_s":3.43,"mem_mb":68.7,"disk_size":"216M"},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":3.2,"mem_mb":64.5,"disk_size":"224.6M"},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"mendeleev","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":15.2,"import_time_s":2.89,"mem_mb":64.4,"disk_size":"217M"}]}}