operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2679 4.13.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2679 4.13.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.21.1 Parsing You can construct a Timedelta

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2758 4.13.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2758 4.13.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.21.1 Parsing You can construct a Timedelta

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2758 4.13.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2758 4.13.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.21.1 Parsing You can construct a Timedelta

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2537 4.10.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2537 4.10.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 800 Chapter 2. User Guide pandas: powerful Python

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2531 4.10.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2531 4.10.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.20. Time deltas 801 pandas: powerful Python

and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. This type is very similar to how Timestamp works performance regressions. pandas is in the process of migrating to the asv library to enable easy monitoring of the performance of critical pandas operations. These benchmarks are all found in the pandas/asv_bench not introduced performance regressions. Histori- cally, pandas used vbench library to enable easy monitoring of the performance of critical pandas operations. These benchmarks are all found in the pandas/vb_suite

read_excel now supports s3 urls of the format s3://bucketname/filename (GH11447) • add support for AWS_S3_HOST env variable when reading from s3 (GH12198) • A simple version of Panel.round() is now implemented and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. This type is very similar to how Timestamp works performance regressions. pandas is in the process of migrating to asv benchmarks to enable easy monitoring of the performance of critical pandas operations. These benchmarks are all found in the pandas/asv_bench

read_excel now supports s3 urls of the format s3://bucketname/filename (GH11447) • add support for AWS_S3_HOST env variable when reading from s3 (GH12198) • A simple version of Panel.round() is now implemented and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. This type is very similar to how Timestamp works performance regressions. pandas is in the process of migrating to asv benchmarks to enable easy monitoring of the performance of critical pandas operations. These benchmarks are all found in the pandas/asv_bench

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2851 4.13.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2851 4.13.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.21.1 Parsing You can construct a Timedelta

operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2853 4.13.8 Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2853 4.13.9 Roadmap evolution StringIO. The string could be a URL. Valid URL schemes include http, ftp, S3, and file. For file URLs, a host is expected. For instance, a local file could be file ://localhost/path/to/table.json • typ : type and behaves in a similar manner, but allows compatibility with np.timedelta64 types as well as a host of custom representation, parsing, and attributes. 2.21.1 Parsing You can construct a Timedelta