Appending two JSON objects in python I am very new to python language a day old in python. I have to add append two jason string comma separated  {'10.10.10.1': {'msg1': 'hello1'} &amp; {'10.10.10.2': {'msg2': 'hello2'} as {'10.10.10.1': {'msg1': 'hello1'},{'10.10.10.2': {'msg2': 'hello2'}  I know it's really very bad to ask such question.
How do I merge two dictionaries in a single expression (taking union of dictionaries)? I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.e. taking the union).  The update() method would be what I need, if it returned its result instead of modifying a dictionary in-place. &gt;&gt;&gt; x = {'a': 1, 'b': 2} &gt;&gt;&gt; y = {'b': 10, 'c': 11} &gt;&gt;&gt; z = x.update(y) &gt;&gt;&gt; print(z) None &gt;&gt;&gt; x {'a': 1, 'b': 10, 'c': 11}  How can I get that final merged dictionary in z, not x? (To be extra-clear, the last-one-wins conflict-handling of dict.update() is what I'm looking for as well.)
It would seem that one way of proving this would be to show the existence of non-algebraic numbers. Is there a simpler way to show this? Parallel.ForEach Slower than ForEach Interpretation of interaction term Why aren't variable-length arrays part of the C++ standard? Will Determinism be ever possible? RegEx: Grabbing values between quotation marks I have a value like this:  "Foo Bar" "Another Value" something else   What regex will return the values enclosed in the quotation marks (e.g. Foo Bar and Another Value)? Has user testing found that the "three horizontal bars" for main menu on mobile is commonly understood? "Three horizontal lines" aka "hamburger icon" seems to be becoming a convention for the "main menu" button, especially on mobile sites:    Has anyone done any user testing of this convention, or got any A/B testing results? (i.e. is there an increase in bounce rate compared to using the word "Menu"?)  I did some quick user testing with wireframes featuring this icon for the main menu. 3 out of 6 people got it and used it. The others did not.  One person in particular had a lot of trouble "getting back to the top" (i.e. restarting their navigation from the top level of the site) as they didn't know about the convention, or that the logo would link to the home page.  I guess it will be different for different demographics - users of Facebook on mobile probably know it.  Anyone got any findings they can share? A function that is continuous at the origin but not differentiable there Show that $f(x,y)=\dfrac{xy^2}{x^2+y^2}$ (with $(x,y)\not=(0,0)$ and $f(0,0)=0$) is continuous but not differentiable at $(0,0)$.  I tried to show continuity with an $\epsilon -\delta$ argument but I don't know how to factorize the expression so that I can have something useful.   For differentiability I think I should show that the partials are not continuous at $(0,0)$. But finding the partials is also painful. Determine Whether Two Date Ranges Overlap Given two date ranges, what is the simplest or most efficient way to determine whether the two date ranges overlap?  As an example, suppose we have ranges denoted by DateTime variables StartDate1 to EndDate1 and StartDate2 to EndDate2. Length of a JavaScript object How can I pass a Parameter via Query String to populate a lookup field on a New Item Form/DVWP? Process substitution and pipe I was wondering how to understand the following:     Piping the stdout of a command into the stdin of another is a powerful   technique. But, what if you need to pipe the stdout of multiple   commands? This is where process substitution comes in.   In other words, can process substitution  do whatever pipe can do?   What can process substitution do, but pipe cannot? What should I do when I have lenses with different filter thread sizes? Between you and ("me" or "I")? PHP XML how to output nice format XML attribute vs XML element Let $X_1$ and $X_2$ be independent and identically distributed exponential random variables with rate $\lambda$. Let $S_2 = X_1 + X_2$.  Q: Show that $S_2$ has PDF $f_{S_2}(x) = \lambda^2 x \text{e}^{-\lambda x},\, x\ge 0$.  Note that if events occurred according to a Poisson Process (PP) with rate $\lambda$, $S_2$ would represent the time of the 2nd event.   Alternate approaches are appreciated. The approaches provided are commonly used when learning queueing theory &amp; stochastic processes.     Recall the Exponential distribution is a special case of the Gamma distribution (with shape parameter $1$). I've learned there is a more general version of this  that can be applied. How do I straighten UV maps? How to parse data in JSON format? IP address of host of Wi-Fi ad-hoc network? I often create a wireless ad-hoc network on my laptop running Windows 7. Now I'd like to connect to it using standard HTTP from my . I've tried 192.168.1.1 and that doesn't work. What should the address be so I can connect?