1.0.2rc1 catch IPython not installed

Author: gutow

ReadMe.md

@@ -159,6 +159,8 @@ github](https://github.com/gutow/Algebra_with_Sympy/issues).
     vanilla python or Google Colab.
   * Workaround for Google Colab's inconsistent handling of mixed Latex and 
     plain text strings. This impacted display of equation labels in Colab.
+  * BUG FIX: catch IPython not installed so that can run in plain vanilla 
+    python.
 * 1.0.1 (May 22, 2024)
   * BUG FIX: equation labels that include underscore characters "_" are now 
     accepted.

algebra_with_sympy/algebraic_equation.py

@@ -389,7 +389,10 @@ def integers_as_exact(self):
             return self.integers_as_exact
 
 def __latex_override__(expr, *arg):
-    from IPython import get_ipython
+    try:
+        from IPython import get_ipython
+    except ModuleNotFoundError:
+        pass
     colab = False
     try:
         from google.colab import output
@@ -449,8 +452,12 @@ def __command_line_printing__(expr, *arg):
         return print(tempstr + str(expr) + labelstr)
 
 # Now we inject the formatting override(s)
-from IPython import get_ipython
-ip = get_ipython()
+ip = None
+try:
+    from IPython import get_ipython
+    ip = get_ipython()
+except ModuleNotFoundError:
+    ip = false
 formatter = None
 if ip:
     # In an environment that can display typeset latex
@@ -485,7 +492,10 @@ def set_integers_as_exact():
     mode of algebra_with_sympy. To turn this off call
     `unset_integers_as_exact()`.
     """
-    from IPython import get_ipython
+    try:
+        from IPython import get_ipython
+    except ModuleNotFoundError:
+        pass
     if get_ipython():
         get_ipython().input_transformers_post.append(integers_as_exact)
         algwsym_config = get_ipython().user_ns.get("algwsym_config", False)
@@ -506,7 +516,10 @@ def unset_integers_as_exact():
     starts with `set_integers_as_exact()` enabled (
     `algwsym_config.numerics.integers_as_exact = True`).
     """
-    from IPython import get_ipython
+    try:
+        from IPython import get_ipython
+    except ModuleNotFoundError:
+        pass
     if get_ipython():
         pre = get_ipython().input_transformers_post
         # The below looks excessively complicated, but more reliably finds the
@@ -544,7 +557,10 @@ def units(names):
     """
     from sympy.core.symbol import symbols
     #import __main__ as shell
-    from IPython import get_ipython
+    try:
+        from IPython import get_ipython
+    except ModuleNotFoundError:
+        pass
     syms = names.split(' ')
     user_namespace = None
     retstr = ''
@@ -620,7 +636,6 @@ def solve(f, *symbols, **flags):
     """
     from sympy.solvers.solvers import solve
     from sympy.sets.sets import FiniteSet
-    from IPython.display import display
     newf =[]
     solns = []
     displaysolns = []

algebra_with_sympy/preparser.py

@@ -66,23 +66,28 @@ def integers_as_exact(lines):
     off using the Algebra_with_sympy functions:
     * `set_integers_as_exact()`
     * `unset_integers_as_exact()`
+    NOTE: This option does not work in plain vanilla Python sessions. You
+    must be running in an IPython environment (Jupyter, Notebook, Colab,
+    etc...).
     """
     from sympy.interactive.session import int_to_Integer
     string = ''
     for k in lines:
         string += k + '\n'
     string = string[:-1] # remove the last '\n'
     return int_to_Integer(string)
-
-from IPython import get_ipython
-if get_ipython():
-    if hasattr(get_ipython(),'input_transformers_cleanup'):
-        get_ipython().input_transformers_post.\
-            append(algebra_with_sympy_preparser)
-    else:
-        import warnings
-        warnings.warn('Compact equation input unavailable.\nYou will have ' \
-                      'to use the form "eq1 = Eqn(lhs,rhs)" instead of ' \
-                      '"eq1=@lhs=rhs".\nIt appears you are running an ' \
-                      'outdated version of IPython.\nTo fix, update IPython ' \
-                      'using "pip install -U IPython".')
+try:
+    from IPython import get_ipython
+    if get_ipython():
+        if hasattr(get_ipython(),'input_transformers_cleanup'):
+            get_ipython().input_transformers_post.\
+                append(algebra_with_sympy_preparser)
+        else:
+            import warnings
+            warnings.warn('Compact equation input unavailable.\nYou will have ' \
+                          'to use the form "eq1 = Eqn(lhs,rhs)" instead of ' \
+                          '"eq1=@lhs=rhs".\nIt appears you are running an ' \
+                          'outdated version of IPython.\nTo fix, update IPython ' \
+                          'using "pip install -U IPython".')
+except ModuleNotFoundError:
+    pass

version.py

@@ -1 +1 @@
-__version__ = '1.0.2rc0'
+__version__ = '1.0.2rc1'