我使用python-制表打印具有包含列表中的单元数据。我可以自定义的python-算算到底格式的单元格内容,所以列表被以不同的方式格式化?
我想避免手动预处理(列表转换为字符串)传递给制表的数据。
如果制表不会允许这样做,在哪里我可以定义更细粒度的格式选项有替代库?
示例代码:
from tabulate import tabulate
# Minimal sample. My output comes from an API and contains much more data
table = [['Sun', [1, 2, 3]], ['Moon', [4, 5, 6]]]
print(tabulate(table, tablefmt='plain', headers=['Planet', 'Value']))
输出:
Planet Value
Sun [1, 2, 3]
Moon [4, 5, 6]
我多么想格式化输出:
Planet Value
Sun 1,2,3
Moon 4,5,6
我建议你去尝试不同的库。我检查了DOC,并没有发现任何有关。
或有功能它(你没有要求它虽然)
from tabulate import tabulate
def delist(lst):
return ",".join([str(item) for item in lst])
table = [['Sun', delist([1, 2, 3])], ['Moon', delist([4, 5, 6])]]
print(tabulate(table, tablefmt='plain', headers=['Planet', 'Value']))
>>>
Planet Value
Sun 1,2,3
Moon 4,5,6
最后的选择,也许有点绝望......一个是采取类制成表格,并在其中集成该功能。但它有点大材小用
因为我无法找到一个方法如何相应地配置的平板状,一个解决方案是猴子补丁以表格形式列出内部_format方法。
原始方法(制表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)
我修改的版本:
# 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,我代替以表格形式列出与我这样的内部方法:
from mypkg.tabulate_extensions import _format_extended
tabulate._format = _format_extended
输出现在是任意的。好事是,我现在可以扩展以任何方式我想其他细胞类型的格式(如字典)。