### Motivation and Context
The pinecone integration tests can run locally, but not in CI. CI has no
way of picking up the pinecone environment.
Pinecone tests rely on the following environment variables in CI:
- Pinecone__ApiKey
- Pinecone__Environment
`get_pinecone_config` in `test_pinecone.py` currently only accounts for
Pinecone__ApiKey
### Description
This PR changes the method `get_pinecone_config` in `test_pinecone.py`
to return the pinecone environment from an environment variable if the
tests are being run in CI.
### Contribution Checklist
<!-- Before submitting this PR, please make sure: -->
- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows SK Contribution Guidelines
(https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
- [ ] The code follows the .NET coding conventions
(https://learn.microsoft.com/dotnet/csharp/fundamentals/coding-style/coding-conventions)
verified with `dotnet format`
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄
Co-authored-by: Devis Lucato <[email protected]>
### Motivation and Context
Adding a Pinecone Memory store using the Pinecone vector database client
for SK python
Add Pinecone vector db memory to SK Python
Memory storage for SK and vectors
### Description
- Using the existing pinecone python module/client
- Reviewing with console exceptions responses that come back from
pinecone, will update if any were omitted
- Currently investigating and would like feedback if I should respond to
throttling errors in a different manner
- Currently testing each API response, slight delay may occur due to
throttling of my starter account in Pinecone.
### Contribution Checklist
<!-- Before submitting this PR, please make sure: -->
- [ ] The code builds clean without any errors or warnings
- [X] The PR follows SK Contribution Guidelines
(https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
- [ ] The code follows the .NET coding conventions
(https://learn.microsoft.com/dotnet/csharp/fundamentals/coding-style/coding-conventions)
verified with `dotnet format`
- [ ] All unit tests pass, and I have added new tests where possible
- [X] I didn't break anyone 😄
---------
Co-authored-by: Lee Miller <[email protected]>
Co-authored-by: Casey Schadewitz <[email protected]>
Co-authored-by: cschadewitz <[email protected]>
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
Co-authored-by: Dmytro Struk <[email protected]>
Co-authored-by: Shawn Callegari <[email protected]>
Rebrand end-to-end folder to kernel-syntax-examples because these aren't
actually tests for the repo. They are console apps.
Addresses #1397
Co-authored-by: Alex Chao <achao@achao>
Co-authored-by: Lee Miller <[email protected]>
### Motivation and Context
<!-- Thank you for your contribution to the semantic-kernel repo!
Please help reviewers and future users, providing the following
information:
1. Why is this change required? Improved parity between .Net and Python
implementations
2. What problem does it solve? Allow for waiting in Python
implementation
3. What scenario does it contribute to? Parity
4. If it fixes an open issue, please link to the issue here.
-->
### Description
Pretty simple allows for waiting X seconds in a thread
### Contribution Checklist
<!-- Before submitting this PR, please make sure: -->
- [x] The code builds clean without any errors or warnings
- [x] The PR follows SK Contribution Guidelines
(https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
- [x] The code follows the .NET coding conventions
(https://learn.microsoft.com/dotnet/csharp/fundamentals/coding-style/coding-conventions)
verified with `dotnet format`
- [x] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄
### Motivation and Context
Replacing flake8 and isort with ruff in the pre-commit hook.
Adding "I" to ruff rules so that it checks for import errors.
Co-authored-by: Abby Harrison <[email protected]>
### Motivation and Context
The addition of the field `additional metadata` to `MemoryRecord` was
not propagated to the weaviate integration tests. This PR ensures that
the fields are properly filled and aligned.
### Description
- Added an entry for `"additional info"` to the memory record test
fixtures for weaviate.
### Motivation and Context
#1212
### Description
Fixed a bug in the process of checking native function.
---------
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
### Motivation and Context
To take advantage of APIs offered by most LLMs and to be in sync with
.NET SK, this PR introduces the ability to generate multiple text
completions or chat completions from a single prompt.

### Description
- Return type hint for `complete_async` and `complete_chat_async`
changed from `str -> Union[str, List[str]]`. The use of `Union` is the
proper way to indicate multiple return types prior to Python 3.10+. 3.10
supports the use of the `|` symbol, but since the Python SK is supported
on 3.8 and 3.9, I did not adopt the newer standard.
- `complete_async`, `complete_stream_async`, `complete_chat_async`, and
`complete_chat_stream_async` now support settings field
`number_of_responses` greater than 1. Previously only a value of 1 was
supported.
- **Note: hf_text_completion does not support streaming multiple
responses due to a limitation of TextIteratorStreamer. This feature
requires the ability to parse distinct responses from
TextIteratorStreamer.**
- Fixed a bug where `complete_async` was streaming single responses as
1D arrays, content now is simply a string.
### Example Usage
#### Setup
```
kernel = sk.Kernel()
# Configure OpenAI service
api_key, org_id = sk.openai_settings_from_dot_env()
oai_text_service = OpenAITextCompletion("text-davinci-003", api_key, org_id)
oai_chat_service = OpenAIChatCompletion("gpt-3.5-turbo", api_key, org_id)
# Configure Hugging Face service
hf_text_service = HuggingFaceTextCompletion("gpt2", task="text-generation")
# Configure Prompt
prompt = "what is the purpose of a rubber duck?"
# Configure Request Settings
text_request_settings_multi = CompleteRequestSettings(
max_tokens=100,
temperature=0.7,
top_p=1,
frequency_penalty=0.5,
presence_penalty=0.8,
number_of_responses=4
)
chat_request_settings_multi = ChatRequestSettings(
max_tokens=100,
temperature=0.7,
top_p=1,
frequency_penalty=0.5,
presence_penalty=0.8,
number_of_responses=4
)
```
#### Text Completion (Standard)
```
texts = await oai_text_service.complete_async(prompt, text_request_settings_multi)
i = 0
for text in texts:
print("Option " + str(i) + ": " + text)
i += 1
```
#### Streaming Text Completion
```
multi_stream = oai_text_service.complete_stream_async(prompt, text_request_settings_multi)
texts = [''] * text_request_settings_multi.number_of_responses
async for text in multi_stream:
i = 0
os.system('cls' if os.name == 'nt' else 'clear') # clear the screen for a better experience
print("PROMPT: " + prompt)
for option in text:
texts[i] = texts[i] + option
print("{0}: {1}".format(i, texts[i]))
i += 1
```
#### Chat Completion (Standard)
```
texts = await oai_chat_service.complete_chat_async([("user",prompt)], chat_request_settings_multi)
i = 0
for text in texts:
print("Option " + str(i) + ": " + text)
i += 1
```
#### Streaming Chat Completion
```
multi_stream = oai_chat_service.complete_chat_stream_async([("user",prompt)], chat_request_settings_multi)
texts = [''] * chat_request_settings_multi.number_of_responses
async for text in multi_stream:
i = 0
os.system('cls' if os.name == 'nt' else 'clear') # clear the screen for a better experience
print("PROMPT: " + prompt)
for option in text:
texts[i] = texts[i] + option
print("{0}: {1}".format(i, texts[i]))
i += 1
```
#### HuggingFace Standard Completion
```
texts = await hf_text_service.complete_async(prompt, request_settings_multi)
i = 0
for text in texts:
print("-----------------------------------")
print("Option " + str(i) + ": " + text)
i += 1
```
### Motivation and Context
Closes#1271 and addresses several TODOs in ChromaMemoryStore
### Description
- added field `additional_metadata` to `MemoryRecord` and all downstream
methods/classes (see `SemanticTextMemoryBase`, `SemanticTextMemory`,
`MemoryQueryResult`, and `ChromaMemoryStore`)
- addressed ChromaMemoryStore TODO 'what is key used for?' For chromadb,
key and id are effectively the same value, but the two fields are
differentiated for memory stores like Qdrant which require that key be a
uuid. I updated the logic so that this is more apparent. Note that this
results in no change in end-user functionality.
- Updated ChromaMemoryStore TODO 'get_async say embedding is optional
but Record constructor requires it.` MemoryRecord constructor no longer
requires an embedding. Logic is updated and a test added to show that
embedding retrieval is functionally optional.
### Motivation and Context
The change enables the planner to make use of time references like "last
wednesday" or "three days ago" which currently cause issues. This
enables better use of SequentialPlanner when servicing user intent.
Issue: https://github.com/microsoft/semantic-kernel/issues/922
### Description
This adds two new functions to the core TimeSkill class in both .net and
python.
1. DaysAgo(str days) - takes an argument representing a number of days
and offsets it from the current date to return the resultant date as the
answer.
2. LastMatchingDay(str dayName) - takes the name of a day of the week
and works backwards from yesterday to give it the first matching date of
that day (e.g. "last wednesday"). Currently it only works with English
day names, and this is reflected in the prompt description.
Simple unit tests are added for each function.
Co-authored-by: Devis Lucato <[email protected]>
### Motivation and Context
This PR introduces streaming methods to TextCompletionBase and
ChatCompletionBase. With this pr, you can stream LLM output in the
following ways:
```
import semantic_kernel as sk
from semantic_kernel.connectors.ai import ChatCompletionClientBase, TextCompletionClientBase, ChatRequestSettings, CompleteRequestSettings
from semantic_kernel.connectors.ai.open_ai import AzureTextCompletion, AzureChatCompletion, OpenAITextCompletion, OpenAIChatCompletion
from semantic_kernel.connectors.ai.hugging_face import HuggingFaceTextCompletion
kernel = sk.Kernel()
# Configure Azure LLM service
deployment, api_key, endpoint = sk.azure_openai_settings_from_dot_env()
text_service = AzureTextCompletion("text-davinci-003", endpoint, api_key)
chat_service = AzureChatCompletion("gpt-35-turbo", endpoint, api_key)
# Configure OpenAI service
api_key, org_id = sk.openai_settings_from_dot_env()
oai_text_service = OpenAITextCompletion("text-davinci-003", api_key, org_id)
oai_chat_service = OpenAIChatCompletion("gpt-3.5-turbo", api_key, org_id)
# Configure Hugging Face service
hf_text_service = HuggingFaceTextCompletion("gpt2", task="text-generation")
request_settings = CompleteRequestSettings(
max_tokens=1000,
temperature=0.7,
top_p=1,
frequency_penalty=0.5,
presence_penalty=0.5
)
stream = oai_text_service.complete_stream_async("Write an essay on why AI is awesome:", request_settings)
async for text in stream:
print(text, end = "") # end = "" to avoid newlines
chat_request_settings = ChatRequestSettings(
max_tokens=1000,
temperature=0.7,
top_p=1,
frequency_penalty=0.5,
presence_penalty=0.5,
)
stream = oai_chat_service.complete_chat_stream_async([("user","Write an essay on why AI is awesome:")], chat_request_settings)
async for text in stream:
print(text, end = "") # end = "" to avoid newlines
request_settings = CompleteRequestSettings(
max_tokens=256,
temperature=0.7,
top_p=1,
frequency_penalty=0.5,
presence_penalty=0.5
)
stream = hf_text_service.complete_stream_async("Hi my name is ", request_settings)
async for text in stream:
print(text, end = "") # end = "" to avoid newlines
```
**Out of Scope**: Improving the chat history interface with come in a
future PR
### Description
- added the method complete_stream_async to TextCompletionBase
- added the method complete_chat_stream_async to ChatCompletionBase
- Updated OpenAI and Hugging Face text completion service classes to
support new streaming methods
- Added new __init__.py to make importing service classes
### Motivation and Context
Python integration tests were failing consistently for 2 reasons. First,
all ubuntu system tests were failing due to missing shared object files
related to cuda. Second, macOS + python 3.11 tests were failing due to
hsnwlib unable to install on native hardware.
See https://github.com/microsoft/semantic-kernel/pull/1066 for
description of changes to integration test code to condense test code,
make better use of pytest fixtures, and reduce the number of calls to
external APIs (OpenAI, AOAI)
### Description
- Integration tests were failing on Linux due to a regression in python
torch=2.0.1. Downgrading the version to 2.0.0 resolved these failures.
- For MacOS + 3.11 specifically, setting the environment variable
`HNSWLIB_NO_NATIVE=1` ensures that the hnswlib wheel can be built and
installed properly on M1 hardware.
- Python integration tests reliably and consistently passing:
https://github.com/microsoft/semantic-kernel/actions/runs/5035748596
### Motivation and Context
The separation of Kernel, KernelBase, and KernelExtensions is several
layers of unnecessary abstraction. This PR does not change any API or
kernel behavior - it just reduces the number of files and namespaces to
accomplish the same functionality.
### Description
- Removed the `semantic_kernel/kernel_extensions` namespace. Methods
that existed in this namespace now exist in kernel.py.
- Removed KernelBase - this abstract class implies that there are
multiple ways to instantiate SK. For Python, we expect only a single
type of Kernel to instantiated for all instances.
- Updated tests and imports to accommodate the above changes.
Add support for Chroma https://docs.trychroma.com/
> Chroma is the open-source embedding database. Chroma makes it easy to
build LLM apps by making knowledge, facts, and skills pluggable for
LLMs.
### Motivation and Context
* #403 Support for Chroma embedding database
* #426 Python: feat: add chroma memory store
* #449 Python: feat: add chroma memory store
---------
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
This commit fixes a typo in the e2e_text_completion.py test file, where
the word "signularity" was misspelled as "singularity". This could cause
confusion or errors in the test output. The typo was corrected to
"singularity" to match the intended meaning of the poem. No other
changes were made to the test file or the functionality of the chatbot.
### Motivation and Context
Porting conversation summary skill. Integration test is added as well.
Action item and topic will be ported later.
---------
Co-authored-by: Po-Wei Huang <[email protected]>
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Abby Harrison <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
### Motivation and Context
Using both OpenAI and Azure OpenAI services would not work due to the
way they were configured. The `openai` module would be configured
globally with keys and endpoints for one type of service and then
overwritten when adding another service. Instead, we can configure the
settings when making the API calls.
Also, some integration tests are failing because of throttling by GPT4.
### Description
- Use the API settings when calling the openai API instead of
configuring gloabally
- Increased delay to 3 seconds for some integration tests to avoid rate
limit errors
- Relaxed the assertion strings for some integration tests
- Ran pre-commit linting
- Switch some tests to GPT Turbo 3.5
---------
Co-authored-by: Devis Lucato <[email protected]>
### Motivation and Context
Port MathSkill from C# to python3. This is essential for advanced skill
like plan
### Description
The PR includes two part. The first part is an implementation of
MathSkill. The implementation follows C# version.
It does several things:
1. Parse initial value
2. Get value from context
3. Sum or subtract
The unit test covers these scenarios:
1. Add/subtract value
2. Error should throw if string is not correct. Not able to parse.
Last part is the init.py and feature matrix.
Unit test pass locally.
Co-authored-by: Po-Wei Huang <[email protected]>
Co-authored-by: Mark Karle <[email protected]>
Co-authored-by: Devis Lucato <[email protected]>
* Fix lint errors
* Bump version number
* Add retry loop to integration tests
* Enable all integration tests: some tests will fail if OpenAI/Azure are
throttling.
### Motivation and Context
KernelConfig isn't needed as it's less pythonic and is not used
independently from Kernel. This moves all its methods and members into
Kernel.
### Description
- Removed KernelConfig
- Put KernelConfig's methods and variables into Kernel
- Ran unit and end-to-end tests
- Did not run notebooks because they are out of date with the current
repo.
---------
Co-authored-by: Shawn Callegari <[email protected]>
### Motivation and Context
Run python integration tests on every push to main, and every 12 hours.
These integration tests will run on every push to main as well as twice
a day. At the time of this PR, we are seeing ~3 PRs to the python SK per
day. Each Integration test run will make ~32 AI requests. For each PR,
12 runs will be made: 3 each for python 3.8, 3.9, 3.10, and 3.11 for a
total of ~400 calls per push to main.
We should re-evaluate the trigger on pushes to main if PRs to the python
SK significantly increase.
### Description
- add workflow definition for integration tests
- Example run:
https://github.com/microsoft/semantic-kernel/actions/runs/4874609026/jobs/8695771345?pr=763
- For push triggers, add path checks for dotnet/** or python/**
depending on the type of workflow
- pinned requirements.txt dependencies to the versions pinned in the
pyproject.toml file to ensure parity between pip package dependencies
and local code
**Note**: Integration tests are failing on windows with python 3.8 -
already captured a task to address the problem
### Motivation and Context
New release version 0.2.6
Fix bug in 0.2.5.dev0 pip package
Update notebooks to the latest pip package (0.2.6)
### Description of Changes
- fixed a param name error in the creation of a reference memory_record
- renamed text_service -> text_completion_service (consistency with .NET)
- renamed text_embedding_service -> text_embedding_generation_service
(consistency with .NET)
- Updated notebooks accordingly
- bumped pip versions to 0.2.6.dev0
### Motivation and Context
This PR introduces the ability to run formal integration tests for
python using pytest - separated from unit tests for easier automation.
### Description
- moved `python/tests/end-to-end` directory to
`python/tests/integration`
- renamed integration tests to test_* pattern so pytest will detect them
- import `GenerationConfig` for hugging face completions - according to
logs, this is the recommended practice
### Motivation and Context
This PR introduces native python support for Hugging Face models that
can: complete text, generate new text, summarize, and that generate
embeddings. Currently only supports downloading the models locally from
the HF model hub. Future plans include supporting the HF inference API
as well.
### Description
- Added 2 services: `hf_text_completion` and `hf_text_embedding`
- `hf_text_completion` supports the following tasks: _text-generation_,
_text2text-generation_, and _summarization_
- `hf_text_embedding` supports any model supported by the
sentence-transformers pip package
- Added dependencies: pytorch, transformers, sentence-transformers to
`requirements.txt` and `poetry.lock`
- fixed typo: `get_embedding_service_service_id` ->
`get_embedding_service_id`
- Added a number of integration tests for supported HF models
### Motivation and Context
Porting the text partitioning module to python
(Reopening of PR #427 )
### Description
- This is adding the Text partitioning module in
`semantic_kernel/semantic_functions/semantic_text_partitioner.py`
and the function_extention in
`semantic_kernel/semantic_functions/function_extension.py`
- Compared to the C# version the files were added directly into the
`semantic_functions` directory instead of the
`semantic_functions/partitioning` to not have too many nested
directories.
### Motivation and Context
Users want to use ChatGPT as the service for their semantic functions.
This feature exists with the C# SK. ChatGPT is perfectly capable of
doing this. Additionally added more end-to-end tests with the intention
of being able to run them as integration tests for the Python SK.
### Description
- `OpenAIChatCompletion` now additionally inherits from
`TextCompletionClientBase`. This extends to `AzureOpenAIChatCompletion`.
- If a chat service is also a `TextCompletionClientBase`, it will be
added to both `text_services` and `chat_services`.
- Created 4 end-to-end tests that target the combination of Azure,
OpenAI, text service, and chat service. Abstracted common behavior for
these tests.
- Added asserts to these end-to-end tests. These should be run as
integration tests, but that will be handled in a separate PR.
### Motivation and Context
This PR is a consistency update between the Python and .NET Semantic
Kernels.
**This PR does not contain any feature enhancements or improvements!**
### Description
- Replace terminology 'backend' with 'service'
- Move semantic_kernel.ai (semantic_kernel/ai) to
semantic_kernel.connectors.ai (semantic_kernel/connectors/ai)
### Motivation and Context
HttpSkill python version
### Description
- Porting the HttpSkill from C# to Python.
- Adding corresponding unit tests.
Co-authored-by: Abby Harrison <[email protected]>
### Motivation and Context
To make the Python SK more pythonic, combined all kernel.run_* methods
into a single method with optional parameters.
### Description
- Removed `kernel.run_on_vars_async()`
- Removed `kernel.run_on_str_async()`
- Added `SKContext`, `ContextVariables`, and string params to
`kernel.run_async()`
- Moved `run_on_vars_async()` logic to `run_async()` method
- Arranged method params so that required params come before optional
params.
- Updated tests and notebooks where applicable.
### Motivation and Context
This PR makes creating a kernel instance more pythonic. The builder
pattern is removed and the kernel is constructed using Kernel(...).
Work originally started with #137
### Description
- Removed kernel_builder.py.
- Instance creation pattern `kernel = sk.create_kernel() -> kernel =
sk.Kernel()`
- For notebook 6, there is no need to create a separate kernel for the
GitHub files. Changed to use a separate collection.
Co-authored-by: Devis Lucato <[email protected]>
AAD tokens offer greater authentication security and is used by several products.
Add support for Azure Active Directory auth for the `Azure*` backends.
### Motivation and Context
The `python-preview` branch is under active development and many
docs/tests/examples are getting a bit out of sync. There are also a few
small cleanup chores/refactors to make _usage_ easier (e.g., to make
examples cleaner). I've grouped these small fixes (plus a few bug fixes)
into this "cleanup" PR.
### Description
This PR does the following:
1. Updates the out-of-date example in `README.md`
2. Fixes all 5 of the notebooks we support right now (1,2,3,4, and 6;
notebook 5 is planner, I've blanked out most of the code there so we
don't confuse people, especially as the planner API is changing)
3. Fixes a bug w/ `stop_sequences` in `(Azure)OpenAITextCompletion`
4. Fixes a bug introduced in our upgrades to the embeddings cosine-sim
check (we should add more thorough tests here)
5. Cleans up tests
6. Ensures end-to-end tests are all runnable
7. Fixes up the `kernel_extensions` to work more naturally (so that end
users can use them directly on the `kernel` object and get good
type-hinting)
### Motivation and Context
Right now, there are lots of Config classes in SK. This doesn't feel
very "pythonic" and can be a bit confusing at times. To reduce the
amount of indirection, this PR removes several config classes from the
Python port.
NOTE: this PR is also critical preparation for a large change to re-sync
with how C# SK handles multi-modality. I have changes ready for adding a
`./connectors` dir and syncing with the Text/Chat/Image/Embedding
support, but there's a few "prep" PRs I need to get through first.
### Description
This PR makes the following changes:
1. We remove the `(Azure)OpenAIConfig` classes (simplifying the code
related to creating/managing backends)
2. We remove the `./configuration` sub-directory and move the
`KernelConfig` class to the module's root dir (this mirrors the C#
version)
3. We re-tool the `KernelConfig` class to behave similarly to the
current C# version (again, this is prep for later changes RE
multi-modality)
4. We make corresponding updates across the code/tests now that we've
removed some config classes
In future PRs, it'd be great to also simplify:
1. `(Chat|Completion)RequestSettings`
2. `(ReadOnly)SkillsCollection` and related classes
3. Take a hard look at `ContextVariables` and `SKContext` (maybe
`ContextVariables` is just a `dict` in SK python)
### Motivation and Context
This PR fixes#235 and adds a test for the functionality. This is ahead
of the planning skill.
### Description
1. Fix to fix the typo in the `from_dict()` method in
`prompt_template_config.py`
2. Add assignment back to skill config so results from JSON aren't
discarded in `import_semantic_skill_from_directory.py`
3. Add tests
### Motivation and Context
We recently merged an upgrade to the `PromptTemplateEngine`, let's make
the rest of the tests consistent with the directory structure used in
that PR.
### Description
This PR does three (small) things:
1. Makes the `./tests` directory have consistent structure
2. Re-names some of the "tests" that were at the top-level of the
`./tests` dir to `./tests/end-to-end` (which better describes their
purpose: things like `basics.py` and `memory.py` are end-to-end examples
of using SK and ways to verify nothing is horribly broken)
3. Applies `isort` (which we plan to add to our linting workflow here on
GitHub soon)
### Motivation and Context
The C# Semantic Kernel has recently undergone an upgrade to its
`PromptTemplateEngine`. This brings Python back in line with the
semantics of Prompt Templates in C#.
### Description
Here, unlike the original port, I've tried to make things more
pythonic/idiomatic (instead of trying to directly mirror the C#
codebase). I've also brought over the corresponding unit tests (and
added some of my own as I was building/validating).
### Motivation and Context
Port of the core TimeSkill
### Description
This PR adds the core TimeSkill with unit tests.
```
kernel = sk.create_kernel()
kernel.import_skill(TimeSkill(), "time")
```
```
sk_prompt = """
{{time.now}}
"""
```
This PR provides a path to using the ChatGPT API in the Python Preview
of Semantic Kernel. In addition, this provides `Azure*` versions of many
existing models (so Python users can leverage Azure OpenAI).
I think that, in general, it may be worth considering how best to work
with models that have different modalities: now we have text
completions, embeddings, chat completions (and I'd imagine images/etc.
may be nice to support someday too).
Regardless, this PR provides a fast path to using the exciting new Chat
APIs from OpenAI with SK!
See the new `python/tests/chat_gpt_api.py` for a usage example.
### Motivation and Context
Porting the FileIOSkill to python.
### Description
This is the port of the FileIOSkill to python with unit tests.
```
kernel = sk.create_kernel()
kernel.import_skill(FileIOSkill(), "file")
context = kernel.create_new_context()
context["path"] = "test_file_io_skill.txt"
context["content"] = "Hello, world!"
```
Using the same function names than the C# version
```
{{file.readAsync $path}}
{{file.writeAsync}}
```
modification to the depencies :
- Adding the package : aiofiles
- Adding the dev package : pytest-asyncio
### Motivation and Context
This PR simplifies `@sk_*` decorators while porting the core TextSkill
### Description
This PR is a first step at adapting the python codebase to be more
*pythonic*, it contains the following modifications :
1. Merged the decorators `@sk_function_context_parameter`,
`@sk_function_input` , `@sk_function_name` with `@sk_function`.
The decorators were replaced with new kwargs on `sk_function` : `name`,
`input_description`, `input_default_value`
2. The `name` kwarg is optional, the name of the method will be used if
none is provided.
3. Ported core skill - TextSkill
4. Added some pytest unit test for SK decorators and TextSkill
5. Changed how skills are imported in the kernel by using instance of
the class, not relying on static method anymore for the discovery.
e.g.
```
kernel.import_skill(TextSkill())
```