Mercurial > p > roundup > code
annotate roundup/rcsv.py @ 1767:fdaa0b751355
python2.3 CSV support, also missing thankyou in index.txt :)
| author | Richard Jones <richard@users.sourceforge.net> |
|---|---|
| date | Thu, 28 Aug 2003 04:46:54 +0000 |
| parents | |
| children | 0afdf96ea9d7 3555941caea0 |
| rev | line source |
|---|---|
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python2.3 CSV support, also missing thankyou in index.txt :)
Richard Jones <richard@users.sourceforge.net>
parents:
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1 """ |
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python2.3 CSV support, also missing thankyou in index.txt :)
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2 Supplies a Python-2.3 Object Craft csv module work-alike to the extent |
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python2.3 CSV support, also missing thankyou in index.txt :)
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3 needed by Roundup using the Python 2.3 csv module. |
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4 |
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5 """ |
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6 |
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7 from roundup.i18n import _ |
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8 error = """Sorry, you need a module compatible with the csv module. |
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9 Either upgrade your Python to 2.3 or later, or get and install |
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10 the csv module from: |
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11 http://www.object-craft.com.au/projects/csv/ |
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12 |
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13 These two csv modules are different but Roundup can use either. |
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14 """ |
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15 try: |
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16 import csv |
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17 try: |
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18 reader = csv.reader |
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19 writer = csv.writer |
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20 excel = csv.excel |
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21 error = '' |
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22 except AttributeError: |
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23 # fake it all up using the Object-Craft CSV module |
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24 class excel: |
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25 pass |
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26 if hasattr(csv, 'parser'): |
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27 error = '' |
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28 def reader(fileobj, dialect=excel): |
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29 # note real readers take an iterable but 2.1 doesn't |
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30 # support iterable access to file objects. |
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31 result = [] |
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32 p = csv.parser(field_sep=dialect.delimiter) |
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33 |
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34 while 1: |
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35 line = fileobj.readline() |
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36 if not line: break |
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37 |
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38 # parse lines until we get a complete entry |
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39 while 1: |
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40 fields = p.parse(line) |
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41 if fields: break |
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42 line = fileobj.readline() |
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43 if not line: |
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44 raise ValueError, "Unexpected EOF during CSV parse" |
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45 result.append(fields) |
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46 return result |
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47 class writer: |
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48 def __init__(self, fileobj, dialect=excel): |
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49 self.fileobj = fileobj |
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50 self.p = csv.parser(field_sep = dialect.delimiter) |
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51 def writerow(self, fields): |
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52 print >>self.fileobj, self.p.join(fields) |
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53 def writerows(self, rows): |
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54 for fields in rows: |
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55 print >>self.fileobj, self.p.join(fields) |
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56 |
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57 except ImportError: |
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58 class excel: |
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59 pass |
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60 |
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61 class colon_separated(excel): |
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62 delimiter = ':' |
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63 class comma_separated(excel): |
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64 delimiter = ',' |
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65 |
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66 |
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67 if __name__ == "__main__": |
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68 f=open('testme.txt', 'r') |
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69 r = reader(f, colon_separated) |
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70 remember = [] |
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71 for record in r: |
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72 print record |
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73 remember.append(record) |
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74 f.close() |
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75 import sys |
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76 w = writer(sys.stdout, colon_separated) |
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77 w.writerows(remember) |
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78 |
