[Python] Repeat function in python similar to R

Is there a repeat function in python similar to the rep function in R? If not, how to create one?

R has a powerful rep function as follows:

rep(x, times = 1, length.out = NA, each = 1)

• 
  x: a vector
  
  
• 
  times: an integer-valued vector giving the (non-negative) number of times to repeat each element if of length length(x), or to repeat the whole vector if of length 1. Negative or NA values are an error. A double vector is accepted, other inputs being coerced to an integer or double vector.
  
  
• 
  length.out: non-negative integer. The desired length of the output vector. Other inputs will be coerced to a double vector and the first element taken. Ignored if NA or invalid.
  
  
• 
  each: non-negative integer. Each element of x is repeated each times. Other inputs will be coerced to an integer or double vector and the first element taken. Treated as 1 if NA or invalid.
  

Some examples are as follows:

R code
> letters
[1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q" "r" "s" "t" "u" "v"
[23] "w" "x" "y" "z"
#Example 1
> rep(letters[1:3],times=c(1,2,4))
[1] "a" "b" "b" "c" "c" "c" "c"
#Example 2
> rep(letters[1:3],each=2,len=15)
[1] "a" "a" "b" "b" "c" "c" "a" "a" "b" "b" "c" "c" "a" "a" "b"
#repeat a:c each element 2 until length be 15
#Example 3
> rep(letters[1:3],each=3,times=2)
[1] "a" "a" "a" "b" "b" "b" "c" "c" "c" "a" "a" "a" "b" "b" "b" "c" "c" "c"
#repeat a:c each element 3 and repeat this 2 times
#Example 4
> rep(letters[c(TRUE,FALSE)],each=2)
[1] "a" "a" "c" "c" "e" "e" "g" "g" "i" "i" "k" "k" "m" "m" "o" "o" "q" "q" "s" "s" "u" "u"
[23] "w" "w" "y" "y"
#Example 5
> rep(letters[c(TRUE,FALSE,TRUE,FALSE,FALSE)],each=2)
[1] "a" "a" "c" "c" "f" "f" "h" "h" "k" "k" "m" "m" "p" "p" "r" "r" "u" "u" "w" "w" "z" "z"
#Example 6
> rep(letters[c(TRUE,FALSE,TRUE,FALSE,FALSE)],each=2,len=25)
[1] "a" "a" "c" "c" "f" "f" "h" "h" "k" "k" "m" "m" "p" "p" "r" "r" "u" "u" "w" "w" "z" "z"
[23] "a" "a" "c"


As we saw above, the rep function can produce complex sequences. So, is there a function that does the same as R's rep? If not, at least how to create a similar one? The function should handle all of the above examples to check its flexibility!

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