Publishing archive
Saturday
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The highlighted days are the ones with something published; those are clickable.
IT
The thirty-sixth lesson of the Python course and the end of the module on reports. Four steps in one `main()`, a write through a temporary file, a repeat with no consequences and an exit code; the exercise adds `--dry-run`. And the rule it was all for: a source that fell over leaves yesterday's report rather than erasing it.
IT
The thirty-fifth lesson of the Python course. `1234567.891` and `1 234 567,89` are one number and two different reports. Format strings, the local separators, the `round` that goes to the even one, `Decimal` for money, and the sum of rounded rows that does not equal the rounded sum.
IT
The thirty-fourth lesson of the Python course. HTML built out of data: a template instead of glued strings, `html.escape` for everything that came from the table, the picture inside the file — and a page that checks itself. One file that opens in any browser, prints to PDF and travels as a single attachment.
IT
The thirty-third lesson of the Python course. The same two numbers: from zero the bar is 1.31 times taller, with the axis starting at eight it is 4.86. The same segment of a line: 14 degrees on a wide sheet and 73 on a narrow one. Per cent against percentage points, the choice of window — and a chart that checks itself.
IT
The thirty-second lesson of the Python course. We draw the series from the last lesson: a sheet and axes, a line, labels, a grid, a legend — and save it to a file without a single window opening. Plus the three things that break a chart for everybody: `Agg`, the order of drawing before saving, and a figure nobody closed.
IT
The thirty-first lesson of the Python course. An index of dates can do what a list cannot: `asfreq` shows the days that are not there, `resample` folds days into weeks, `rolling` smooths. And the measured price of smoothing: the range halves, and the day of the real peak disappears from the series.
