Instaloader

- **Fix downloading of HD profile pictures** (209)

Unfortunately, it is now required to be logged in to access the HD version of profile pictures. When attempting to download profile pictures without --login, a warning message is printed once, and the lower-quality versions are obtained.

For backwards compatibility, already-downloaded profile pictures are overwritten if the now-obtainable version is assumed to be of better quality than the existing one (determined by file size vs Content-Length).

- Fix rare KeyError when downloading profile pictures that don't have a Last-Modified header (188)

- Support login with two-factor authentication (2FA) (200)
- Download posts by location with `%location_id` (contributed by stijn-uva in 212)
- `--commit-mode` to ensure pictures are not corrupted when Instaloader is
unexpectedly interrupted (contributed by sushilicious in 139)

As reported in 209, the API endpoint that was used to access the HD profile picture URL has been removed. Until we encounter a new way to get the HD profile picture, Instaloader will download a low-resolution version of profile pictures.

- Support login with two-factor authentication (2FA) (200)
- Download posts by location with `%location_id` (contributed by stijn-uva in 212)
- `--commit-mode` to ensure pictures are not corrupted when Instaloader is
unexpectedly interrupted (contributed by sushilicious in 139)

As reported in 209, the API endpoint that was used to access the HD profile picture URL has been removed. Until we encounter a new way to get the HD profile picture, Instaloader will download a low-resolution version of profile pictures.

This is a pre-release; **Upgrade** with

pip3 install --pre --upgrade instaloader

- Download posts by location with `%location_id` (contributed by stijn-uva in 212)
- `--commit-mode` to ensure pictures are not corrupted when Instaloader is
unexpectedly interrupted (contributed by sushilicious in 139)

As reported in 209, the API endpoint that was used to access the HD profile picture URL has been removed. Until we encounter a new way to get the HD profile picture, Instaloader will download a low-resolution version of profile pictures.

This is a pre-release; **Upgrade** with

pip3 install --pre --upgrade instaloader

- Fix `--fast-update`, which erroneously aborted the download on video posts when used with flags `--no-videos --no-video-thumbnails` (183)
- Fix erroneously printing an error message (without any further consequences) when anonymously downloading private profile pictures with `--profile-pic-only` (178)

- Download highlights of a profile: option `--highlights`, class `Highlight`, methods `Instaloader.get_highlights()`, `Instaloader.download_highlights()` (162)
- Download posts where a given profile is tagged: option `--tagged`, method `Instaloader.download_tagged()` (contributed by e5150 in 154)
- Prevent pictures from being downloaded with option `--no-pictures` (131)
- Download single post with target `-shortcode` (129)
- Allow reading arguments from file with `+args.txt` (contributed by AndCycle in 161)
- Prevent download of regular profile posts with option `--no-posts`, obsoleting `--stories-only` and `--profile-pic-only`
- New method `Instaloader.download_profiles()`, efficiently handling downloading of multiple profiles and their stories, deprecating `Instaloader.download_profile()`
- Tidy up output of `--help`
- Adjust rate control to current rate limit, making Instaloader much faster
- Export method `Instaloader.format_filename()` to apply filename pattern
- In-memory cache to map profile ids to profiles