python - Pythonic way to create a long multi-line string -


i have long query. split in several lines in python. way in javascript using several sentences , joining them + operator (i know, maybe it's not efficient way it, i'm not concerned performance in stage, code readability). example:

var long_string = 'some text not important. garbage to' +                   'illustrate example';

i tried doing similar in python, didn't work, used \ split long string. however, i'm not sure if only/best/pythonicest way of doing it. looks awkward. actual code:

query = 'select action.descr "action", '\     'role.id role_id,'\     'role.descr role'\     'from '\     'public.role_action_def,'\     'public.role,'\     'public.record_def, '\     'public.action'\     'where role.id = role_action_def.role_id and'\     'record_def.id = role_action_def.def_id and'\     'action.id = role_action_def.action_id and'\     'role_action_def.account_id = ' + account_id + ' and'\     'record_def.account_id=' + account_id + ' and'\     'def_id=' + def_id

are talking multi-line strings? easy, use triple quotes start , end them.

s = """         long string if had         energy type more , more ..."""

you can use single quotes (3 of them of course @ start , end) , treat resulting string s other string.

note: string, between starting , ending quotes becomes part of string, example has leading blank (as pointed out @root45). string contain both blanks , newlines.

i.e.,:

' very\n        long string if had the\n        energy type more , more ...'

finally, 1 can construct long lines in python this:

 s = ("this very"       "long string too"       "for sure ..."      )

which not include blanks or newlines (this deliberate example showing effect of skipping blanks result in):

'this verylong string toofor sure ...'

no commas required, place strings joined pair of parenthesis , sure account needed blanks , newlines.


Comments

Post a Comment

Popular posts from this blog

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

javascript - Z-index in d3.js -

i have map , when hover effect on region of map below yellow line , circle, last ones disappear. how can solve problem? http://jsfiddle.net/ot21n9qx/ var arc = g.append("path") .style("fill", "none") .style("stroke", "yellow") .style("stroke-width", 2) .attr("d", "m" + pathorigin[0] + "," + pathorigin[1] + " q" + svgpoint[0] + "," + pathorigin[1] + " " + svgpoint[0] + "," + svgpoint[1]); var circlesize = d3.scale.linear() .domain([0, 0.5, 1]) .range([4, 10, 4]); svg not have z order draws objects in order created. need create path , circle after create highlight regions. here forked fiddle: http://jsfiddle.net/o00fzgaf/1/
Read more