DRB Python CSV Driver
Project description
DRB Driver CSV
drb-driver-csv is a Python plugin for DRB, representing DRB driver allowing to recognize and to browse CSV (Comma-Separated Values) data.
Installation
pip install drb-driver-csv
Quick Started
from drb.drivers.csv import CsvNodeFactory
# generate the CSV node (DRB resolver can be used also)
node = CsvNodeFactory().create('url/to/csv/data.csv')
# select a row first row by index
row = node[0]
# select a row first row by name
row = node['row_0']
# select first value in a row by index
row[0]
# select a value in a row by name
row['header']
# retrieve value from row: 5, column 1
node[5][1].value
Driver
The drb-driver-csv reads a CSV data like it having a header, so the first row is the second line of the CSV data.
Each node defined in this driver represent a unitary part or whole content of a CSV data:
More details in the following section.
Nodes
CsvBaseNode
The CsvBaseNode
wraps another DRB node (base_node) representing the
CSV data and allows to provide an entry point to the CSV content.
Attributes
The CsvBaseNode
has no attribute.
Children
Each child of the CsvBaseNode
repersenting a row of the CSV content. Those
children are accessible via:
- index (int): CSV row index
- name (str): generic name following the pattern
row_N
:row_
is a string constantN
is the row index (int)
Implementations
The CsvBaseNode
inherits from the base_node, plus a pandas.DataFrame
implementation to see the data as array.
Learn more about pandas.
CsvRowNode
A CsvRowNode
represent a row from a CSV content.
Attributes
The CsvRowNode
has no attribute.
Children
A child of a CsvRowNode
is a node containing the value for the associate
header. Those children can be accessible via:
- index (int): using header index
- name (str): using the header name
Implementations
The CsvBaseNode
has no implementation.
CsvValueNode
A CsvValueNode
represent a cell value from a CSV content. The associated
value is accessible via the value
property
Attributes
A CsvValueNode
has no attribute.
Children
A CsvValueNode
has no child.
Implementations
A CsvValueNode
has no implementation
Factory
The drb-driver-csv provide a factory csv
generating only
CsvBaseNode.
Topic
The drb-driver-csv comes also with a DRB topic allowing to resolve and to recognize CSV data.
graph RL
A([CSV<br/>060f724c-9334-4fd5-9378-8d83c629fd1d])
uuid | from | label | category | factory |
---|---|---|---|---|
060f724c-9334-4fd5-9378-8d83c629fd1d | ∅ | CSV | FORMATTING | csv |
Project details
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