Filing for Minneapolis city elections closed on July 21. The city is using Instant-Runoff Voting for the first time this year. The election is November 3. There will be no September primary, as there always has been in the past. See this list of candidates and their party labels. Parties don’t nominate candidates in these elections, and the candidates choose their own labels. UPDATE: here is the city elections web page, which seems to show that anyone can get on the ballot for any city office by paying a fee of $20, with no petition needed. Thanks to Thomas Jones for the link.
Labels include Independence, Green, Libertarian, Socialist Workers, Socialist Action, Progressive, in addition to Democratic-Farmer-Labor and Republican.