Sequence to showcase Python's basic HostClient methods (Hub in context)

python/hostclient-basic-py/main.py

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+import sys
+from scramjet.streams import Stream
+
+
+async def run(context, input, *args):
+    """
+    A Sequence that uses some basic HostClient's methods.
+
+    Parameters:
+        input (any): dummy input, it takes no params
+
+    Returns:
+        stream: output stream with data
+    """
+    stream = Stream()
+
+    try:
+        # get version
+        version = await context.hub.get_version()
+        print(version)
+        context.logger.info(f"Host version called from Sequence: {version}")
+
+        # get load check
+        load_check = await context.hub.get_load_check()
+        print(load_check)
+        context.logger.info(f"Load check called from Sequence: {load_check}")
+
+        # get config
+        hub_config = await context.hub.get_config()
+        print(hub_config)
+        context.logger.info(f"Host config called from Sequence: {hub_config}")
+
+        # get status
+        status = await context.hub.get_status()
+        print(status)
+        context.logger.info(f"Host status called from Sequence: {status}")
+
+        # List sequences and write its length to output
+        seq_list = await context.hub.list_sequences()
+        stream.write(str(len(seq_list)))
+        context.logger.info(f"Sequence list called from Sequence: {seq_list}")
+
+        # List instances and write its length to output
+        inst_list = await context.hub.list_instances()
+        stream.write(str(len(inst_list)))
+        context.logger.info(f"Instance list called from Sequence: {inst_list}")
+
+    except Exception as e:
+        # if error occurs it will be logged under /instance/:id/stderr endpoint (CLI: si inst stderr <instID>)
+        print(e, file=sys.stderr)
+    finally:
+        stream.end()
+        return stream

python/hostclient-basic-py/package.json

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+{
+    "name": "@scramjet/hostclient-basic-py",
+    "version": "0.1.0",
+    "main": "main.py",
+    "author": "Scramjet <open-source@scramjet.org>",
+    "license": "GPL-3.0",
+    "repository": {
+      "type": "git",
+      "url": "https://github.com/scramjetorg/transform-hub.git"
+    },
+    "engines": {
+      "python3": "3.9.0"
+    },
+    "scripts": {
+        "build:refapps": "yarn build:refapps:only",
+        "build:refapps:only": "mkdir -p dist/__pypackages__/ && cp *.py dist/ && pip3 install -t dist/__pypackages__/ -r requirements.txt",
+        "postbuild:refapps": "yarn prepack && yarn packseq",
+        "packseq": "PACKAGES_DIR=python node ../../scripts/packsequence.js",
+        "prepack": "PACKAGES_DIR=python node ../../scripts/publish.js",
+        "clean": "rm -rf ./dist"
+      }
+  }

python/hostclient-basic-py/requirements.txt

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+scramjet-framework-py