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Where does 'Hello world' come from?

... I should have been more careful with language in my original post about this -- Of course Barlop is right, K&R was published in 1978. A coma was missing in my post. I meant that the BCPL manual with Dr. Kernighan's Hello World code was dated 1972. The memorandum with...
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat

...tderr=PIPE, universal_newlines=True, shell=True) return result.stdout my_output = out("echo hello world") # Or my_output = out(["echo", "hello world"]) share | improve this answer | ...
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How to print to stderr in Python?

... import sys sys.stderr.write() Is my choice, just more readable and saying exactly what you intend to do and portable across versions. Edit: being 'pythonic' is a third thought to me over readability and performance... with these two things in mind, with p...
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Intercept page exit event

When editing a page within my system, a user might decide to navigate to another website and in doing so could lose all the edits they have not saved. ...
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“Parse Error : There is a problem parsing the package” while installing Android application

...ARDemo.apk (make sure to back up the older version) and see if that helps. My guess is that it has something to do with the name of the apk. If it still does not work, then you can eliminate the name of the apk file as the source of the problem and start investigating 2) by rebuilding your old vers...
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Tool to generate JSON schema from JSON data [closed]

We have this json schema draft . I would like to get a sample of my JSON data and generate a skeleton for the JSON schema, that I can rework manually, adding things like description, required, etc, which can not be infered from the specific examples. ...
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Creating dataframe from a dictionary where entries have different lengths

... Here's a simple way to do that: In[20]: my_dict = dict( A = np.array([1,2]), B = np.array([1,2,3,4]) ) In[21]: df = pd.DataFrame.from_dict(my_dict, orient='index') In[22]: df Out[22]: 0 1 2 3 A 1 2 NaN NaN B 1 2 3 4 In[23]: df.transpose() Out[23]: ...
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HTML5shiv vs Dean Edwards IE7-js vs Modernizr - which to choose?

I'm looking to build my first HTML5 site and have been looking at working with IE. 3 Answers ...
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How do I undo the most recent local commits in Git?

... @Kyralessa In my workplace, messing up entire team's workflow and then telling them how to fix sh*t is not called 'communication'. git history re-write is a destructive operation that results in trashing of parts of the repo. Insisting on ...
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Inserting a PDF file in LaTeX

I am trying to insert a PDF or doc file as an appendix in my LaTeX file. Do you know how I can do this? 6 Answers ...