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How to increment datetime by custom months in python without using library [duplicate]

...t works just like timedelta but for calendar months rather than days/hours/etc. Here's an example: from monthdelta import MonthDelta def prev_month(date): """Back one month and preserve day if possible""" return date + MonthDelta(-1) Compare that to the DIY approach: def prev_month(dat...
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How can I see the raw SQL queries Django is running?

... q = Query.objects.values('val1','val2','val_etc') print q.query share | improve this answer | follow | ...
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How to delete from multiple tables in MySQL?

...ity, there are other ways of doing with EXISTS, NOT EXISTS, IN, NOT IN and etc. But the one above where you specify from which tables to delete with an alias before the FROM clause can get you out of a few pretty tight spots more easily. I tend to reach out to an EXISTS in 99% of the cases and the...
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Get the latest record from mongodb collection

... impact will it have if we place limit at the end also how last record is fetched when your are limiting the output to just one document and it must be the top document in collection. – kailash yogeshwar Nov 23 '16 at 16:58 ...
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How to force an entire layout View refresh?

...ply the theme, make sure you do it before any View is drawn, i.e., before setContentView(R.layout.mainscreen); public void setTheme (int resid) Since: API Level 1 Set the base theme for this context. Note that this should be called before any views are instantiated in the Context (for exa...
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What file uses .md extension and how should I edit them?

...it adds to the .txt file can wreak havoc on other editors (vim, Notepad++, etc). Much better to work in plain text when dealing with .txt and use a word processor or Acrobat for non .txt textual files like .doc and .pdf. – labyrinth Mar 24 '15 at 20:56 ...
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Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools

... new laptop (x64), I wanted to go x64 all the way (jvm, jdk, jre, eclipse, etc..). But once I finished setting everything up I realized that the Android SDK wasn't x64, so I had issues. Go back to x86 jvm and you should be ok. EDIT: 11/14/13 I've seen some recent activity and figured I would elabo...
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Android emulator doesn't take keyboard input - SDK tools rev 20

...below: If you notice that the soft (screen-based) main keys Back, Home, etc. are missing from your emulator you can set hw.mainKeys=no to enable them. Original answer Even though the developer documentation says keyboard support is enabled by default it doesn't seem to be that way in SDK rev ...
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Using capistrano to deploy from different git branches

...cap -s env="<env>" branch="<branchname>" deploy set :branch, fetch(:branch, "master") set :env, fetch(:env, "production") share | improve this answer | follow ...
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What good are SQL Server schemas?

...ures, views together. All employee-related objects in the employee schema, etc. You can also give permissions to just one schema, so that users can only see the schema they have access to and nothing else. share | ...