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Pandas - How to flatten a hierarchical index in columns
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The most pythonic way to do this to use map function.
df.columns = df.columns.map(' '.join).str.strip()
Output print(df.columns):
Index(['USAF', 'WBAN', 'day', 'month', 's_CD sum', 's_CL sum', 's_CNT sum',
's_PC sum', 'temp...
Regex to validate password strength
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codaddict's solution works fine, but this one is a bit more efficient: (Python syntax)
password = re.compile(r"""(?#!py password Rev:20160831_2100)
# Validate password: 2 upper, 1 special, 2 digit, 1 lower, 8 chars.
^ # Anchor to start of string.
(?=(?:[^A-Z]*[...
Interfaces — What's the point?
...s from IPizza is guaranteed to be orderable, as it has an Order() method.
Python is not statically-typed, therefore types are kept and looked up at runtime. So you can try calling an Order() method on any object. The runtime is happy as long as the object has such a method and probably just shrugs ...
Record file copy operation with Git
... also, AFAICT, this doesn't work with git blame.
– Clément
Jan 10 at 20:48
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How can I open a cmd window in a specific location?
... need to use cd /d. For example:
C:\Windows\System32\cmd.exe /K "cd /d H:\Python\"
(documentation)
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Why is C so fast, and why aren't other languages as fast or faster? [closed]
...aster because almost everything else is written in C.
Java is built on C, Python is built on C (or Java, or .NET, etc.), Perl is, etc. The OS is written in C, the virtual machines are written in C, the compilers are written in C, the interpreters are written in C. Some things are still written in...
Comparing two java.util.Dates to see if they are in the same day
...meZone zone = DateTimeZone.forID( "America/Montreal" );
DateTime dateTimeQuébec = new DateTime( date , zone );
LocalDate
One way to verify if two date-times land on the same date is to convert to LocalDate objects.
That conversion depends on the assigned time zone. To compare LocalDate objects...
What is the difference (if any) between Html.Partial(view, model) and Html.RenderPartial(view,model)
...ht, I can use them seamlessly I guess. Thanks :)
– Stéphane
Apr 28 '10 at 13:37
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How to convert java.util.Date to java.sql.Date?
...ant in determining a date as a new day dawns earlier in Paris than in Montréal, for example).
LocalDate todayLocalDate = LocalDate.now( ZoneId.of( "America/Montreal" ) ); // Use proper "continent/region" time zone names; never use 3-4 letter codes like "EST" or "IST".
At this point, we may be don...
Should “node_modules” folder be included in the git repository
... definitely not a bad idea to track node_modules.
– Léo Lam
Jun 4 '16 at 21:22
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Important aspec...