由于我找不到相应配置制表的方法,因此一种解决方案是猴子修补制表内部 _format 方法。
原始方法(表 0.8.2):
def _format(val, valtype, floatfmt, missingval="", has_invisible=True):
"""Format a value accoding to its type.
Unicode is supported:
>>> hrow = ['\u0431\u0443\u043a\u0432\u0430', '\u0446\u0438\u0444\u0440\u0430'] ; \
tbl = [['\u0430\u0437', 2], ['\u0431\u0443\u043a\u0438', 4]] ; \
good_result = '\\u0431\\u0443\\u043a\\u0432\\u0430 \\u0446\\u0438\\u0444\\u0440\\u0430\\n------- -------\\n\\u0430\\u0437 2\\n\\u0431\\u0443\\u043a\\u0438 4' ; \
tabulate(tbl, headers=hrow) == good_result
True
"""
if val is None:
return missingval
if valtype in [int, _text_type]:
return "{0}".format(val)
elif valtype is _binary_type:
try:
return _text_type(val, "ascii")
except TypeError:
return _text_type(val)
elif valtype is float:
is_a_colored_number = has_invisible and isinstance(val, (_text_type, _binary_type))
if is_a_colored_number:
raw_val = _strip_invisible(val)
formatted_val = format(float(raw_val), floatfmt)
return val.replace(raw_val, formatted_val)
else:
return format(float(val), floatfmt)
else:
return "{0}".format(val)
我的修改版本:
# tabulate_extensions.py
from tabulate import _text_type, _binary_type, _strip_invisible
def _format_extended(val, valtype, floatfmt, missingval="", has_invisible=True):
"""Format a value accoding to its type.
Unicode is supported:
>>> hrow = ['\u0431\u0443\u043a\u0432\u0430', '\u0446\u0438\u0444\u0440\u0430'] ; \
tbl = [['\u0430\u0437', 2], ['\u0431\u0443\u043a\u0438', 4]] ; \
good_result = '\\u0431\\u0443\\u043a\\u0432\\u0430 \\u0446\\u0438\\u0444\\u0440\\u0430\\n------- -------\\n\\u0430\\u0437 2\\n\\u0431\\u0443\\u043a\\u0438 4' ; \
tabulate(tbl, headers=hrow) == good_result
True
"""
if val is None:
return missingval
if valtype in [int, _text_type]:
# Change list formatting [1,2,3] -> 1,2,3
if type(val) == list:
val = ','.join([str(x) for x in val])
return "{0}".format(val)
elif valtype is _binary_type:
try:
return _text_type(val, "ascii")
except TypeError:
return _text_type(val)
elif valtype is float:
is_a_colored_number = has_invisible and isinstance(val, (_text_type, _binary_type))
if is_a_colored_number:
raw_val = _strip_invisible(val)
formatted_val = format(float(raw_val), floatfmt)
return val.replace(raw_val, formatted_val)
else:
return format(float(val), floatfmt)
else:
return "{0}".format(val)
在我的代码中,我用我的方法替换了表格内部方法,如下所示:
from mypkg.tabulate_extensions import _format_extended
tabulate._format = _format_extended
输出现在符合要求。好消息是我现在可以以任何我想要的方式扩展其他单元格类型(如字典)的格式。