Hello, > The order of the self.step are the order I wan to to execute my analisys. > So this is the order: > In [160]: ena.show() > 1- trimmomatic > 2- merge_trimmomatic_stats > 3- star > 4- picard_sort_sam > 5- rnaseqc > 6- wiggle > 7- cufflinks > 8- cuffquant > 9- gq_seq_utils_exploratory_analysis_rnaseq > > First aim is to write a code to write all the pipeline . > up to now I use this: > job1 = ena.trimming() > ena.prepare_run(job1) > ena.prepare_run(job2) > .. > the other aim is to selcet a range number to execute i.e. 2-9 or 1-4...
In this case, yes, you probably want to explicitly represent the sequence of steps as an explicit list of operators. I think you may have wanted somehow to get this ordered sequence "for free" by iterating over the class's methods, perhaps through a dir(). However, trying to get this ordering from the class via method iteration is unreliable because, underneath the service, the iteration is walking through a dictionary, and dictionaries do not give us a deterministic ordering: the ordering is allowed to change on us between program runs. And in fact, in certain environments, dictionary iteration is _guaranteed_ to give us a different ordering on every program run. See: https://docs.python.org/2/using/cmdline.html#envvar-PYTHONHASHSEED Ultimately, this means that if we want an ordered sequence, we can't depend on dictionary iteration. Lists are what we want. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
