Python的BeautifulTable修改输出

发布于 2025-01-10 12:21:24 字数 1192 浏览 0 评论 0原文

我正在从 dict 形成一个 BeautifulTable 表，其键是数字字符串集（例如“21608”、“32099”、“02978”）。字典的键将成为我的表的第一列：

for (key, value) in stations.items():
    table.rows.append([key] + value)          # 'value' is a list, so here I just concatenate [key] and [value1, ..., valueN] to form new list [key, value1, ..., valueN] to add to the table

当我尝试使用 print(table) 命令打印表（到 stdout 或 txt 文件）时，就会出现问题。

for (key, value) in stations.items():
    table.rows.append([key] + value)
print(table)

问题是：第一列的所有以“0”开头的数字集（例如“02978”、“02186”）都被修改，以便第一个“0”被删除。

输出表

然后我尝试一一打印出行，将它们转换为列表将它们附加到表中：

for (key, value) in stations.items():
    table.rows.append([key] + value)
    print(list(table.rows[-1]))

此输出根据需要显示数据，不删除任何零：

为什么会出现这个结果？原因是在 BeautifulTable 表的 repr() 方法中？我不太明白为什么它会在输出过程中以任何方式修改字符串类型。有什么想法，我怎样才能避免它？

原文

I'm forming a BeautifulTable table from dict, whose keys are string sets of digits (e.g. "21608", "32099", "02978"). The keys of the dict are to become the first column of my table:

for (key, value) in stations.items():
    table.rows.append([key] + value)          # 'value' is a list, so here I just concatenate [key] and [value1, ..., valueN] to form new list [key, value1, ..., valueN] to add to the table

The problem occurs when I try to print out (to stdout or a txt file) the table using print(table) command.

for (key, value) in stations.items():
    table.rows.append([key] + value)
print(table)

And the problem is: all the first column's sets of digits, that are starting with "0" (e.g. "02978", "02186"), are modified so that the first "0" gets stripped.

The output table

Then I tried to print out rows one by one convering them to list just after I append them to table:

for (key, value) in stations.items():
    table.rows.append([key] + value)
    print(list(table.rows[-1]))

This output shows data as needed, with no zeroes stripped:

Why this result? The reason is in repr() method of BeautifulTable tables? I don't quite understand why whould it modify in any way the string types during the output. Any ideas, how could I avoid it?

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不疑不惑不回忆 2025-01-17 12:21:24

它正在转换为 int/float

当前的行为是，如果一个字符串可以解析为 float/int，它将被解析为 float/int

>>> import beautifultable
>>> table = beautifultable.BeautifulTable()
>>> table.append_row(['foo', '012345'])
>>> print(table)
+-----+-------+
| foo | 12345 |
+-----+-------+

您可以使用 detect_numerics=False 禁用此行为。

>>> table = beautifultable.BeautifulTable(detect_numerics=False)
>>> table.append_row(['foo', '012345'])
>>> print(table)
+-----+--------+
| foo | 012345 |
+-----+--------+

It's being converted into an int/float

The current behaviour is that, if a string can be parsed as a float/int, it will be parsed as a float/int

>>> import beautifultable
>>> table = beautifultable.BeautifulTable()
>>> table.append_row(['foo', '012345'])
>>> print(table)
+-----+-------+
| foo | 12345 |
+-----+-------+

You can use detect_numerics=False to disable this behaviour.

>>> table = beautifultable.BeautifulTable(detect_numerics=False)
>>> table.append_row(['foo', '012345'])
>>> print(table)
+-----+--------+
| foo | 012345 |
+-----+--------+

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