Returns a dialect (or None) corresponding to the sample
(self, sample, delimiters=None)
| 173 | |
| 174 | |
| 175 | def sniff(self, sample, delimiters=None): |
| 176 | """ |
| 177 | Returns a dialect (or None) corresponding to the sample |
| 178 | """ |
| 179 | |
| 180 | quotechar, doublequote, delimiter, skipinitialspace = \ |
| 181 | self._guess_quote_and_delimiter(sample, delimiters) |
| 182 | if not delimiter: |
| 183 | delimiter, skipinitialspace = self._guess_delimiter(sample, |
| 184 | delimiters) |
| 185 | |
| 186 | if not delimiter: |
| 187 | raise Error("Could not determine delimiter") |
| 188 | |
| 189 | class dialect(Dialect): |
| 190 | _name = "sniffed" |
| 191 | lineterminator = '\r\n' |
| 192 | quoting = QUOTE_MINIMAL |
| 193 | # escapechar = '' |
| 194 | |
| 195 | dialect.doublequote = doublequote |
| 196 | dialect.delimiter = delimiter |
| 197 | # _csv.reader won't accept a quotechar of '' |
| 198 | dialect.quotechar = quotechar or '"' |
| 199 | dialect.skipinitialspace = skipinitialspace |
| 200 | |
| 201 | return dialect |
| 202 | |
| 203 | |
| 204 | def _guess_quote_and_delimiter(self, data, delimiters): |
no test coverage detected