Mention that empty login names & passwords are accepted

CHANGES.md

@@ -5,6 +5,7 @@ Version 1.5.0
 -------------
 
 * Store login & password on a per-server basis, instead of (as previously) a single login & password for all servers
+* Accept empty user names and passwords for EPrints servers that don't need them
 * Fix handling lack of `official_url` elements in EPrints records
 * Change how thumbnail images and other files are identified for a given record, by looking at the `<relation>` element to see if it is `isVolatileVersionOf`
 * Make sure to write files in UTF-8 format regardless of whether the user's environment variables are set properly.  (Previously, having set `LC_ALL` to an unusual value would result in an error such as `'ascii' codec can't encode character '\u2019' in position 3540: ordinal not in range(128)`.)

README.md

@@ -15,7 +15,7 @@ A program for downloading records from an EPrints server and creating [BagIt](ht
 🏁 Log of recent changes
 -----------------------
 
-_Version 1.5.0_: `eprints2bags` now determines which derived files to ignore for a given record by looking at the `<relation>` element for each document, and checking if the relationship is `isVolatileVersionOf`.  This makes it possible to ignore thumbnail images no matter what format or file name they have. It also now stores user login & password information on a per-server basis, instead of (as previously) using a single login & password for all servers.
+_Version 1.5.0_: `eprints2bags` now determines which derived files to ignore for a given record by looking at the `<relation>` element for each document, and checking if the relationship is `isVolatileVersionOf`.  This makes it possible to ignore thumbnail images no matter what format or file name they have. It also now stores user login & password information on a per-server basis, instead of (as previously) using a single login & password for all servers, and accepts empty user names and passwords in case an EPrints server does not need them.
 
 The file [CHANGES](CHANGES.md) contains a more complete change log that includes information about previous releases.
 

eprints2bags/__main__.py

@@ -164,7 +164,10 @@ def main(api_url = 'A', base_name = 'B', final_fmt = 'F',  id_list = 'I',
 does not have to ask again in the future.  It is also possible to supply the
 information directly on the command line using the -u and -p options (or /u
 and /p on Windows), but this is discouraged because it is insecure on
-multiuser computer systems.
+multiuser computer systems.  If a given EPrints server does not require a user
+name and password, do not use -u or -p and leave the values blank when
+prompted for them by eprints2bags.  (Empty user name and password are allowed
+values.)
 
 To reset the user name and password (e.g., if a mistake was made the last
 time and the wrong credentials were stored in the keyring/keychain system),
@@ -173,10 +176,10 @@ def main(api_url = 'A', base_name = 'B', final_fmt = 'F',  id_list = 'I',
 password again even if an entry already exists in the keyring or keychain.
 
 This program will print messages as it works.  To reduce the number of messages
-to warnings and errors, use the option -q (or /q on Windows).  The output will
-be color-coded unless the -C option (or /C on Windows) is given; this option
-can be helpful if the color control signals create problems for your terminal
-emulator.
+to warnings and errors, use the option -q (or /q on Windows).  Also, output
+is color-coded by default unless the -C option (or /C on Windows) is given;
+this option can be helpful if the color control signals create problems for
+your terminal emulator.
 
 Beware that some file systems have limitations on the number of
 subdirectories that can be created, which directly impacts how many record