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genTuplesM2.py

 1 # The authors of this work have released all rights to it and placed it
 2 # in the public domain under the Creative Commons CC0 1.0 waiver
 3 # (http://creativecommons.org/publicdomain/zero/1.0/).
 4 # 
 5 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 6 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 7 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 8 # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 9 # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
10 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
11 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
12 # 
13 # Retrieved from: http://en.literateprograms.org/Generating_all_tuples_(Python)?oldid=16458
14 
15 import itertools
16 def genTuplesM(lst):
17   return itertools.product(*[range(1,b+1) for b in lst]) # returns an iterator
18 
19 list(genTuplesM([3,5,3,2]))


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genTuplesM.py

 1 # The authors of this work have released all rights to it and placed it
 2 # in the public domain under the Creative Commons CC0 1.0 waiver
 3 # (http://creativecommons.org/publicdomain/zero/1.0/).
 4 # 
 5 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 6 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 7 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 8 # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 9 # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
10 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
11 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
12 # 
13 # Retrieved from: http://en.literateprograms.org/Generating_all_tuples_(Python)?oldid=16458
14 
15 def genTuplesM(lst):
16   return reduce(lambda prev, b: [xs + [i] for xs in prev for i in range(1,b+1)], lst, [[]])
17 
18 genTuplesM([3,5,3,2])
19 


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