Python SDK Update (#523)

* added first iteration decorator for zrok and example flask server

* update requirements. Add context managing for share and access. Updated pastebin example to better cleanup

* setup and sample tweaks

* small linting updates and example changes

* A few small fixes

* fix long description

* Update the ignore file.
Considering moving location of this.

* Added flake8 linting for builds

* use python 3.10

* move setup python to its own block

* added back in the py name

* update changelogs and add readme

---------

Signed-off-by: Cam Otts <otts.cameron@gmail.com>
Co-authored-by: Kenneth Bingham <kenneth.bingham@netfoundry.io>

sdk/python/examples/pastebin/README.md

@@ -0,0 +1,55 @@
+# zrok Pastebin
+
+This example shows the use of the zrok SDK spinning up a simple pastebin command.
+
+## Self-hosting Setup :wrench:
+
+You don't need this section if you're using hosted zrok from NetFoundry (https://api.zrok.io/).
+
+Refer to the [setup guide](../../../docs/guides/self-hosting/self_hosting_guide.md) for details on setting up your zrok
+environment if you're self-hosting zrok.
+
+### Install Python Requirements
+
+The zrok SDK requires Python 3.10 or later.
+
+If you haven't already installed them, you'll need the dependent libraries used in the examples.
+
+```bash
+pip install -r ./sdk/python/examples/requirements.txt
+```
+
+## Running the Example :arrow_forward:
+
+This example contains a `copyto` server portion and `pastefrom` client portion.
+
+### copyto
+
+The server portion expects to get data you want to send via stdin. It can be evoked by:
+
+```bash
+echo "this is a cool test" | python pastebin.py copyto
+```
+
+You should see some helpful info printed out to your terminal:
+
+```bash
+access your pastebin using 'pastebin.py pastefrom vp0xgmknvisu'
+```
+
+The last token in that line is your share token. We'll use that in the pastefrom command to access our data.
+
+### pastefrom
+
+The `pastefrom` client expects the share token as an argument.
+If we envoke it using the same token as above:
+
+```bash
+python pastebin.py pastefrom vp0xgmknvisu
+```
+
+we see the data we had piped into the `copyto` server:
+
+```text
+this is a cool test
+```