forked from dabeaz-course/practical-python
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtableformat.py
More file actions
72 lines (54 loc) · 1.77 KB
/
tableformat.py
File metadata and controls
72 lines (54 loc) · 1.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
from typing import List
from stock import Stock
class FormatError(Exception):
pass
class TableFormatter:
def headings(self, headers):
'''Emit table headings.'''
raise NotImplementedError()
def row(serf, 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 as HTML table.'''
def headings(self, headers):
print('<tr>', end='')
for h in headers:
print(f'<th>{h}</th>', end='')
print('</tr>')
def row(self, rowdata):
print('<tr>', end='')
for d in rowdata:
print(f'<td>{d}</td>', end='')
print('</tr>')
def create_formatter(name):
if name == 'txt':
return TextTableFormatter()
elif name == 'csv':
return CSVTableFormatter()
elif name == 'html':
return HTMLTableFormatter()
else:
raise FormatError(f'Unknown format {name}')
def print_table(data: List[Stock], columns: List[str], formatter: str):
formatter.headings(columns)
for obj in data:
rowdata = [str(getattr(obj, colname)) for colname in columns]
formatter.row(rowdata)