Financial | Geoff McNamara Blog

Python's all() function

Python all() function

Much of my coding efforts are directed towards analyzing financial data specifically targeting potential cash secured puts or covered calls. Recently, I had to refine some market overview displays. I needed a listing of the current market “gainers” and market “losers”. There is one site which I scrape using panda read_html function to grab a hadful of tables. My problem arises from two factors. One is there are no labels or titles to the tables and they can vary. The a table can arise from special (temporart) events and the weekends or holidays might call for the tables to re-arrange their order. This requires that I look directly at the panda table and derive which table I might be examining. One table I look for lists all the “gainers” currenly in the market. What I do know is that the third column of that table will always contain a plus sign (the % change of all the gainers). I had nested loops initially to do this but I refactored the code to use the “all()” function to discover which table has all “+” signs in the column 3. My standard caveat applies here - there is likely a better way to do this - so let me know.

shell/bash uppercase arguments

turning your commandline arguments into uppercase

To make a long story short…

#!/bin/bash
PATTERN=$(echo $1 | tr [:lower:] [:upper:])
# or
PATTERN=$(echo $1 | tr [a-z] [A-Z])
# or
PATTERN=$(echo $1 | awk '{print toupper($0)}')

echo "Your \$1 argument is now uppercase: $1"

To make a short story long…

Just to let you know a little more about me and reveal a few more shells tricks along the way.

I am a very conservative investor - always have been but the low interest rates over the recent past has forced me to try a squeeze a little more out of the stock market also known as a “a gentleman’s gambling parlor of greedy people”. To do this I have been using covered secure puts and covered calls (did I mention that I am conservative?). So what does this have to do with the title here?

Companionway

Python's all() function

Python all() function

shell/bash uppercase arguments

turning your commandline arguments into uppercase

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