SuperStream
在用使用过 Typescript 与 Java 方便的链式调用后，回到 Python 再想实现同样的功能 高阶函数的套娃让你很痛苦吧？ 性能开销都在其次，主要是写着蛋疼啊！
现在一个轻量级流式处理工具来了，利用 python 内置特性，他可以轻松实现
- 更高的可读性
- 惰性求值（无论中途map，filter多少次，数据只在最后遍历一次）
- 完善的类型提示，即使你使用 lambda
安装
pip install superstream
使用
与 java stream 的对照
- 暂不支持并行 parallel
- 大部分功能已支持，行为相同
主要方法支持列表
- map
- forEach
- filter
- reduce
- sorted
- limit
- skip
- count
- min/max
- distinct
- flatMap
- findAny/findFirst
- anyMatch/allMatch/noneMatch
- of
- collect(toList/toSet/toMap/groupingBy)
| Java Stream | Python Stream | 备注 |
|---|---|---|
| filter | filter | |
| map | map | |
| flatMap | flat_map | |
| collect | collect | |
| collect(groupingBy) | group_by | |
| collect(toList) | to_list | |
| collect(toSet) | to_set | |
| collect(toMap) | to_dict | |
| collect(toMap) | to_map | to_dict 的别名，保持与 Java 的一致 |
| distinct | distinct | |
| sorted | sorted | |
| peek | - | peek 在 java stream 多为调试功能， python stream 将不会实现，可用 map 并返回元素本身代替 |
| limit | limit | |
| skip | skip | |
| forEach | for_each | |
| reduce | reduce | |
| count | count | |
| min | min | |
| max | max | |
| findAny | find_first | findAny 可用 findFirst 代替 |
| findFirst | find_first | |
| anyMatch | any_match | |
| noneMatch | none_match | |
| allMatch | all_match | |
| of | of | |
| empty | - | 我在业务中没用过这个方法，如果有需要我会提供 |
| iterate | - | 不常用，不会提供 |
| generate | - | 不常用，不会提供 |
| concat | - | 不常用，不会提供 |
| mapToInt | - | 不提供 |
| mapToLong | - | 不提供 |
| mapToDouble | - | 不提供 |
| flatMapToInt | - | 不提供 |
| flatMapToLong | - | 不提供 |
| flatMapToDouble | - | 不提供 |
FAQ
1 maintainer
Metadata
1 maintainer
Release files for SuperStream 0.2.6
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| SuperStream-0.2.6.tar.gz | 5.0 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| SuperStream-0.2.6-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 10.4 kB
Release files / SuperStream-0.2.6.tar.gz
| Download URL | SuperStream-0.2.6.tar.gz |
|---|---|
| Size | 5.0 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
6b3000ef3a3d1bc912e756ec13ff3a2bbe09fb9667038c1d9225079cf3f749ae
|
|
BLAKE2b-256 checksum How to use checksums |
f994c3617622a2896ed66f583d7cccf442448080854bc70b7df03d308f58b72e
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/3.8.0 pkginfo/1.8.2 readme-renderer/32.0 requests/2.27.1 requests-toolbelt/0.9.1 urllib3/1.26.8 tqdm/4.62.3 importlib-metadata/4.11.1 keyring/23.5.0 rfc3986/2.0.0 colorama/0.4.4 CPython/3.8.2
|
Release files / SuperStream-0.2.6-py3-none-any.whl
| Download URL | SuperStream-0.2.6-py3-none-any.whl |
|---|---|
| Size | 5.3 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
5bbc8fe7fa252359d3471ca7b0bba32501194f22ae89018cc3eac8a5e81ab170
|
|
BLAKE2b-256 checksum How to use checksums |
85ef86991d75fff5512784c5846cab064804e43ae675bea70e3f607cb453e1d8
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/3.8.0 pkginfo/1.8.2 readme-renderer/32.0 requests/2.27.1 requests-toolbelt/0.9.1 urllib3/1.26.8 tqdm/4.62.3 importlib-metadata/4.11.1 keyring/23.5.0 rfc3986/2.0.0 colorama/0.4.4 CPython/3.8.2
|
