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39 lines
1.2 KiB
39 lines
1.2 KiB
import cStringIO
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import codecs
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import csv
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class CsvWriter:
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"""
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A CSV writer which will write rows to CSV file "f",
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which is encoded in the given encoding.
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from https://docs.python.org/2/library/csv.html
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"""
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def __init__(self, f, dialect=csv.excel, encoding="utf-8"):
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# Redirect output to a queue
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self.queue = cStringIO.StringIO()
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self.writer = csv.writer(self.queue, dialect=dialect, delimiter='\t', quotechar='"', quoting=csv.QUOTE_ALL)
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self.stream = f
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self.encoder = codecs.getincrementalencoder(encoding)()
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def clean(self, cell):
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return unicode(cell) if cell else '-'
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def writerow(self, row):
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self.writer.writerow([self.clean(s).encode("utf-8") for s in row])
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# Fetch UTF-8 output from the queue ...
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data = self.queue.getvalue()
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data = data.decode("utf-8")
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# ... and reencode it into the target encoding
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data = self.encoder.encode(data)
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# write to the target stream
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self.stream.write(data)
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# empty queue
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self.queue.truncate(0)
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def writerows(self, rows):
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for row in rows:
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self.writerow(row)
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