Hello 
Is there a way to get the latest revision of the drawing?
For example, if I have a list of revisions like [P01, P02, T01, C01, C02], how can I get the C02 string value?
At the moment, I am unable to see a solution 
I really want to avoid iterating over each drawing and getting the list of revision sequences, and then getting the sequential number with the prefix.
i think you have index by -1.
so you have the last item
lis = ["A1","A2","A3","A4","A5"]
print(lis)
lastItem = lis[-1]
print(lastItem)
hello
sorry I have not given more context
sheetInDoc = query.get_sheets()
rev=[]
for i in sheetInDoc:
if query.get_current_sheet_revision(i) != None:
latest =[query.get_current_sheet_revision(i)][0]
rev.append([i.SheetNumber, latest,\
latest.RevisionDate,\
latest.Description,\
latest.RevisionNumberingSequenceId
])
print (rev)
from here how can I get the latest revision?
the model is from pyrevit:
and I have imported like that
from pyrevit.revit import query
yes, I want to get the index… I am not sure how to get this it looks like that I need to iterate over and get the index of each numbering type
tricky, i just can access the template but not the index itself
sheetInDoc = query.get_sheets()
rev = []
for i in sheetInDoc:
if query.get_current_sheet_revision(i) != None:
latest = [query.get_current_sheet_revision(i)][0]
# rev.append([i.SheetNumber, latest,latest.RevisionDate,latest.Description,latest.RevisionNumberingSequenceId])
rev.append(latest.RevisionNumberingSequenceId)
print(doc.GetElement(rev[0]).Name)
accessing the sequense
Assuming that the “latest” revision means the more recent one, you can just check wich element of the list has the max value at index 2:
latest_rev = max(rev, key=lambda x: x[2])
The key argument is used to extract the values to compare, and it defaults to identity (= the value itself);
The lambda lets you create an anonymous function on a single line.
Taking a step further, I would take advantage of generators and functional programming to skip the list
sheets_and_revs = (
(s.SheetNumber, query.get_current_sheet_revision(s))
for s in query.get_sheets()
)
sheets_with_revs = (sr for sr in sheets_and_revs if sr is not None)
latest = max(sheets_with_revs, key=lambda x: x[1].RevisionDate)
sheet_number, revision = latest
I don’t know if this is what you mean, but I hope it can help.
def GetRevisionSequences(sheets):
revisionSequences = []
for sheet in sheets:
sub_lst = []
revision_Ids = sheet.GetAllRevisionIds()
# print (revisions)
for Id in revision_Ids:
sub_lst.append(doc.GetElement(Id).SequenceNumber)
revisionSequences.append(sub_lst)
return revisionSequences
def GetAllRevisionsOnSheet(sheets):
revisions = []
for sheet in sheets:
sub_lst = []
revision_Ids = sheet.GetAllRevisionIds()
for Id in revision_Ids:
sub_lst.append(doc.GetElement(Id))
revisions.append(sub_lst)
return revisions
selectedSheets = forms.select_sheets()
allRevisions = GetAllRevisionsOnSheet(selectedSheets)
revisionSequences = GetRevisionSequences(selectedSheets)
latestIndex = [len(revList)-1 for revList in revisionSequences]
latestRevision = []
for sublst,ind in zip(allRevisions,latestIndex):
latestRevision.append(sublst[ind])
print ("All revision sequences on sheets: ")
print (revisionSequences)
print ("---------------------------------------------------------------------")
print ("The latest index: ")
print (latestIndex)
print ("---------------------------------------------------------------------")
print ("The latest revision: ")
print (latestRevision)
