python. To see which packages are installed in your current conda environment and their version numbers, in your Terminal window or an Anaconda Prompt, run conda list. Downloading conda • Anaconda or build number. Only if both the version numbers and build numbers were identical did the channel ordering make a difference. This approach had 3 problems: • Build numbers from different channels are not comparable in Channel A. Conda provided no way to choose that behavior. Only version and build numbers mattered. • Build numbers conflicted. This is an effect of the other 2 problems. Assume you were happily using

python. To see which packages are installed in your current conda environment and their version numbers, in your Terminal window or an Anaconda Prompt, run conda list. Downloading conda • Anaconda or build number. Only if both the version numbers and build numbers were identical did the channel ordering make a difference. This approach had 3 problems: • Build numbers from different channels are not comparable in Channel A. Conda provided no way to choose that behavior. Only version and build numbers mattered. • Build numbers conflicted. This is an effect of the other 2 problems. Assume you were happily using

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL 1.1.4 Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 16 Chapter 1. User guide conda Documentation, Release 23.3.1.post2+bdcba5dd0

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL 1.1.4 Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 16 Chapter 1. User guide conda Documentation, Release 0.0.0.dev0+placeholder

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 22 Chapter 4. Contributors welcome conda, Release 23.10.1.dev3 subdir

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL 1.1.4 Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 16 Chapter 1. User guide conda, Release 23.7.4.dev7 subdir (Optional)

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 22 Chapter 4. Contributors welcome conda, Release 23.11.1.dev1 subdir

for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version use the opposite ordering. You can work around this problem by appending a dash to plain version numbers: 1.0.1a => 1.0.1post.a # ensure correct ordering for OpenSSL 1.1.4 Package search and install specifications specification channel (Optional) Can either be a channel name or URL. Channel names may include letters, numbers, dashes, and underscores. 16 Chapter 1. User guide conda, Release 23.9.1.dev1 subdir (Optional)

channel::package syntax in dependencies:, as demonstrated above with conda-forge::numpy (version numbers optional). The specified channel does not need to be present in the channels: list, which is useful lowest channel priority. 3. Sorts tied packages from highest to lowest build number. Because build numbers from different channels are not comparable, build number still comes after channel priority. The for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version

channel::package syntax in dependencies:, as demonstrated above with conda-forge::numpy (version numbers optional). The specified channel does not need to be present in the channels: list, which is useful lowest channel priority. 3. Sorts tied packages from highest to lowest build number. Because build numbers from different channels are not comparable, build number still comes after channel priority. The for dev and post. • When a component starts with a letter, the fillvalue 0 is inserted to keep numbers and strings in phase, resulting in 1.1.a1' == 1.1.0a1'. • The same is repeated for the local version