class UnicodeWriter(object): """ A CSV writer which will write rows to CSV file "f", which is encoded in the given encoding. """ def __init__(self, f, dialect=csv.excel, encoding="utf-8", **kwds): # Redirect output to a queue self.queue = StringIO() self.writer = csv.writer(self.queue, dialect=dialect, **kwds) self.stream = f self.encoder = codecs.getincrementalencoder(encoding)() def writerow(self, row): _row = [s.encode("utf-8") if hasattr(s, "encode") else s for s in row] self.writer.writerow(_row) # Fetch UTF-8 output from the queue ... data = self.queue.getvalue() data = data.decode("utf-8") # ... and reencode it into the target encoding data = self.encoder.encode(data) # write to the target stream self.stream.write(data) # empty queue self.queue.truncate(0) def writerows(self, rows): for row in rows: self.writerow(row)
class UnicodeWriter(object): """ A CSV writer which will write rows to CSV file "f", which is encoded in the given encoding. """ def __init__(self, f, dialect=csv.excel, encoding="utf-8", **kwds): # Redirect output to a queue self.queue = StringIO() self.writer = csv.writer(self.queue, dialect=dialect, **kwds) self.stream = f self.encoder = codecs.getincrementalencoder(encoding)() def writerow(self, row): _row = [s.encode("utf-8") if PY2 else s for s in row] self.writer.writerow(_row) # Fetch UTF-8 output from the queue ... data = self.queue.getvalue() if PY2: data = data.decode("utf-8") # ... and reencode it into the target encoding data = self.encoder.encode(data) # write to the target stream self.stream.write(data) # empty queue self.queue.truncate(0) def writerows(self, rows): for row in rows: self.writerow(row)
def csv(self, filename=None, **format_params): """Generate results in comma-separated form. Write to ``filename`` if given. Any other parameterw will be passed on to csv.writer.""" if not self.pretty: return None # no results if filename: outfile = open(filename, 'w') else: outfile = StringIO() writer = UnicodeWriter(outfile, **format_params) writer.writerow(self.field_names) for row in self: writer.writerow(row) if filename: outfile.close() return CsvResultDescriptor(filename) else: return outfile.getvalue()
def csv(self, filename=None, **format_params): """Generates results in comma-separated form. Write to ``filename`` if given. Any other parameter will be passed on to ``csv.writer``. :param filename: if given, the CSV will be written to filename. Any additional keyword arguments will be passsed through to ``csv.writer``. """ if not self.pretty: return None # no results if filename: outfile = open(filename, 'w') else: outfile = StringIO() writer = UnicodeWriter(outfile, **format_params) writer.writerow(self.field_names) for row in self: writer.writerow(row) if filename: outfile.close() return CsvResultDescriptor(filename) else: return outfile.getvalue()
def __init__(self, f, dialect=csv.excel, encoding="utf-8", **kwds): # Redirect output to a queue self.queue = StringIO() self.writer = csv.writer(self.queue, dialect=dialect, **kwds) self.stream = f self.encoder = codecs.getincrementalencoder(encoding)()