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How to drop into REPL (Read, Eval, Print, Loop) from Python code
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When you're ready to switch to the dark side, ipython -i program.py is there for you.
– joeforker
Sep 9 '09 at 20:26
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Cannot delete directory with Directory.Delete(path, true)
..., it is factually incorrect about the workings of Directory.Delete. Please read the comments for this answer, and other answers to this question.
I ran into this problem before.
The root of the problem is that this function does not delete files that are within the directory structure. So what y...
MySQL Workbench: How to keep the connection alive
...-> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MySQL Workbench. Kill your previously query that
probably is running and run the query again.
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The Concept of 'Hold space' and 'Pattern space' in sed
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When sed reads a file line by line, the line that has been currently read is inserted into the pattern buffer (pattern space). Pattern buffer is like the temporary buffer, the scratchpad where the current information is stored. When y...
“Large data” work flows using pandas
...f gigabytes of data in just this fashion
e.g. I have tables on disk that I read via queries, create data and append back.
It's worth reading the docs and late in this thread for several suggestions for how to store your data.
Details which will affect how you store your data, like:
Give as much de...
Split column at delimiter in data frame [duplicate]
... y C D
Essentially, it's a fancy convenience wrapper for using read.table(text = some_character_vector, sep = some_sep) and binding that output to the original data.frame. In other words, another A base R approach could be:
df <- data.frame(ID=11:13, FOO=c('a|b','b|c','x|y'))
cbind(d...
What is causing this ActiveRecord::ReadOnlyRecord error?
...rom the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the object is read-only.
Passing :reado...
What are OLTP and OLAP. What is the difference between them?
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Let's think of a hard drive as a really wide sheet of paper, where we can read and write things. There are two ways to organize our reads and writes so that they can be efficient and fast.
One way is to make a book that is a bit like a phone book. On each page of the book, we store the information...
Call a “local” function within module.exports from another function in module.exports?
... @NamNguyen Calling exports.foo() seems a little bit awkward and hard to read.
– Afshin Mehrabani
Jul 19 '14 at 12:20
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How can I get a java.io.InputStream from a java.lang.String?
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Update: This answer is precisely what the OP doesn't want. Please read the other answers.
For those cases when we don't care about the data being re-materialized in memory, please use:
new ByteArrayInputStream(str.getBytes("UTF-8"))
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