<p>这里有一个解决方案，它可以处理任何CSV文件，这些文件遵循与您所展示的相同的模式。这是一个非常恶劣的格式。你知道吗</p>
<p>我对这个问题产生了兴趣，并在午休时着手解决。代码如下：</p>
<pre><code>COMMA = ','
NEWLINE = '\n'
def _kvpairs_from_line(line):
line = line.strip()
values = [item.strip() for item in line.split(COMMA)]
i = 0
while i < len(values):
if not values[i]:
i += 1 # advance past empty value
else:
# yield pair of values
yield (values[i], values[i+1])
i += 2 # advance past pair
def kvpairs_by_column_then_row(lines):
"""
Given a series of lines, where each line is comma-separated values
organized as key/value pairs like so:
key_1,value_1,key_n+1,value_n+1,...
key_2,value_2,key_n+2,value_n+2,...
...
key_n,value_n,key_n+n,value_n+n,...
Yield up key/value pairs taken from the first column, then from the second column
and so on.
"""
pairs = [_kvpairs_from_line(line) for line in lines]
done = [False for _ in pairs]
while not all(done):
for i in range(len(pairs)):
if not done[i]:
try:
key_value_tuple = next(pairs[i])
yield key_value_tuple
except StopIteration:
done[i] = True
STATUS = "Status"
columns = [STATUS]
d = {}
with open("data.csv", "rt") as f:
# get an iterator that lets us pull lines conveniently from file
itr = iter(f)
# pull first line and collect status
line = next(itr)
lst = line.split(COMMA)
d[STATUS] = lst[3]
# pull next lines and make sure the file is what we expected
line = next(itr)
assert "Extended Report" in line
line = next(itr)
assert "Job Spec numerical control" in line
# pull all remaining lines and save in a list
lines = [line.strip() for line in f]
for key, value in kvpairs_by_column_then_row(lines):
columns.append(key)
d[key] = value
with open("output.csv", "wt") as f:
# write column headers line
line = COMMA.join(columns)
f.write(line + NEWLINE)
# write data row
line = COMMA.join(d[key] for key in columns)
f.write(line + NEWLINE)
</code></pre>
