Scenario/mpl log show inconsistent syntax

[arthurPignet]

See above:
One example, sometime there is #, sometime there isn't.

2021-01-14 17:54:30 | INFO | ### Splitting data among partners:
2021-01-14 17:54:30 | INFO | Train data split:
2021-01-14 17:54:36 | INFO | Partner #0: 9000 samples with labels [8 9]
2021-01-14 17:54:36 | INFO | Partner #1: 9000 samples with labels [6 7]
2021-01-14 17:54:36 | INFO | Partner #2: 9000 samples with labels [4 5]
2021-01-14 17:54:36 | INFO | Partner #3: 9000 samples with labels [2 3]
2021-01-14 17:54:36 | INFO | Partner #4: 9000 samples with labels [0 1]
2021-01-14 17:54:36 | INFO | Description of data scenario configured:
2021-01-14 17:54:36 | INFO | Number of partners defined: 5
2021-01-14 17:54:36 | INFO | Data distribution scenario chosen: Stratified samples split
2021-01-14 17:54:36 | INFO | Multi-partner learning approach: fedavg
2021-01-14 17:54:36 | INFO | Weighting option: data-volume
2021-01-14 17:54:36 | INFO | Iterations parameters: 20 epochs > 1 mini-batches > 32 gradient updates per pass
2021-01-14 17:54:36 | INFO | Data loaded: cifar10
2021-01-14 17:54:36 | INFO | 45000 train data with 45000 labels
2021-01-14 17:54:36 | INFO | 5000 val data with 5000 labels
2021-01-14 17:54:36 | INFO | 10000 test data with 10000 labels
2021-01-14 17:54:36 | INFO | ## Preparation of model's training on partners with ids: ['#0', '#1', '#2', '#3', '#4']
2021-01-14 17:54:37 | INFO | Init new model
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