$ pip install parquet-tools

$ parquet-tools --help
usage: parquet-tools [-h] {show,csv,inspect} ...

parquet CLI tools

positional arguments:
  {show,csv,inspect}
    show              Show human readble format. see `show -h`
    csv               Cat csv style. see `csv -h`
    inspect           Inspect parquet file. see `inspect -h`

optional arguments:
  -h, --help          show this help message and exit

$ parquet-tools show test.parquet
+-------+-------+---------+
|   one | two   | three   |
|-------+-------+---------|
|  -1   | foo   | True    |
| nan   | bar   | False   |
|   2.5 | baz   | True    |
+-------+-------+---------+

$ parquet-tools show s3://bucket-name/prefix/*
+-------+-------+---------+
|   one | two   | three   |
|-------+-------+---------|
|  -1   | foo   | True    |
| nan   | bar   | False   |
|   2.5 | baz   | True    |
+-------+-------+---------+

$ parquet-tools inspect /path/to/parquet

$ parquet-tools csv s3://bucket-name/test.parquet |csvq "select one, three where three"
+-------+-------+
|  one  | three |
+-------+-------+
| -1.0  | True  |
| 2.5   | True  |
+-------+-------+