demo code on marimo notebooks

notebooks/notebook.py

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+import marimo
+
+__generated_with = "0.24.2"
+app = marimo.App()
+
+
+@app.cell
+def _():
+    import transport 
+    import marimo as mo
+    import io
+    #
+    # reading the synthetic data catalog
+    ddbr = transport.get.reader(label='ai-readi')
+    sql = "SELECT * FROM INFORMATION_SCHEMA.columns"
+    df = ddbr.read(sql=sql)
+    ddbr.close()
+    df # prints the database catalog
+
+
+    return df, io, transport
+
+
+@app.cell
+def _(transport):
+    #
+    # Let's see available features and technologies
+    transport.supported()
+    return
+
+
+@app.cell
+def _(io, transport):
+    #
+    # Let's retrieve data from github (over http|https) and write it to disk
+    # url = "https://raw.githubusercontent.com/codeforamerica/ohana-api/master/data/sample-csv/addresses.csv"
+    # dbr = transport.get.reader(provider="http",url=url)
+    # _data = dbr.read()
+    # dbr.close()
+    #
+
+
+    transport.registry.load()
+    file = io.StringIO("""
+        {
+            "provider":"sqlite3",
+            "database":"/home/steve/dev/data/demo.db3"
+        }
+    """)
+    if not transport.registry.isloaded() or not transport.registry.exists() :
+        #
+        # The registry should be initialized
+        pass
+    #
+    # Creating a registry entry that will have the connectivity information that will be used using a label
+    # This can/should be done in CLI ...
+    #
+    transport.registry.set('github-data',file)
+    # transport.registry.isloaded()
+    # dbw = transport.get.writer(label='demo')
+    return
+
+
+@app.cell
+def _(df, transport):
+    #
+    # writing the addresses to an sqlite3+ database we reference by "demo"
+    dbw = transport.get.writer(label='github-data')
+    dbw.write(df,table='addresses')
+    dbw.close()
+    return
+
+
+if __name__ == "__main__":
+    app.run()