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tableformat.py
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68 lines (51 loc) · 1.46 KB
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class TableFormatter:
def headings(self, headers):
"""
Emit the table headings.
"""
raise NotImplementedError()
def row(self, rowdata):
"""
Emit a single row of table data.
"""
raise NotImplementedError()
class TextTableFormatter(TableFormatter):
"""
Emit a table in plain-text format
"""
def headings(self, headers):
for h in headers:
print(f'{h:>10s}', end=' ')
print()
print(('-' * 10 + ' ') * len(headers))
def row(self, rowdata):
for d in rowdata:
print(f'{d:>10s}', end=' ')
print()
class CSVTableFormatter(TableFormatter):
"""
Output portfolio data in CSV format.
"""
def headings(self, headers):
print(','.join(headers))
def row(self, rowdata):
print(','.join(rowdata))
class HTMLTableFormatter(TableFormatter):
"""
Output portfolio data in HTML format.
"""
def headings(self, headers):
print(f"<tr><th>{'</th><th>'.join(headers)}</th></tr>")
def row(self, rowdata):
print(f"<tr><td>{'</td><td>'.join(rowdata)}</td></tr>")
class FormatError(Exception):
pass
def create_formatter(fmt) -> TableFormatter:
if fmt == 'txt':
return TextTableFormatter()
elif fmt == 'csv':
return CSVTableFormatter()
elif fmt == 'html':
return HTMLTableFormatter()
else:
raise FormatError(f'Unknown format {fmt}')